Shooting In RAW With CHDK For Beginners
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- Опубліковано 7 вер 2024
- BigNate84.com - In this video I will explain the required settings in order to shoot in a RAW file format using CHDK. This is for people who believe pressing the shutter button is only the beginning of the photographic process. I will also show you a comparison between JPEG and unedited RAW pictures. RAW files are much larger and contain much more information compared to JPEG. Professional photographers like RAW files because they capture a picture in its purest form like a digital negative. Remember those little black rolls of film? They were called negatives. RAW pictures are like having the highest quality master or negative. But JPEG's take up less memory and your camera can process them faster. I don't shoot in RAW all the time but when I do I run CHDK on my Canon SX30is amzn.to/OWSNt2. Hope this helps.
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Thanks for following my tutorial. You can choose whether the RAW image is saved in the same directory as the JPEG or a new directory all together under the CHDK RAW parameters. You can also change the extension of the RAW image so that it is easier to distinguish from the JPEG. This can also be done under the RAW parameters CHDK menu.
Yeah I think your right. CHDK won't knock your socks off when it comes to shooting video. But it does offer many great features pertaining more to photography.
Spot on! I have put CHDK onto my little Ixus 70 and couldn't get RAW to work/be recognised in Photoshop... but thanks to this video... it is now working!
Pretty much yeah. You gain overrides that are previously not available. You'll be able to dial in your shutter speed, aperture settings and much more.
Thanks for watching. I am always happy to help.
That's a tough question to answer. It really depends on your camera since they each have different video specs. CHDK will most likely be able to increase the quality slightly. I personally use an SX30is and dont' need CHDK to get 720p video.
Good question. I have no idea what drives Canons decision making. I could speculate that it has something to do with gearing consumer products to consumers and professional products to professionals. Most people looking for these extra features are trying to get the benefits of a professional camera without paying big bucks for one. It's probably more cost effective for the PowerShot brand to appeal to people who just want to point and shoot.
I pretty much found out about CHDK the same way you did. I bought the SX30is for the zoom and overall good reviews. The first week I got it I tried to figure out how to take time lapse and realized I need CHDK to do that. I've been using CHDK ever since. It's a great little hack.
Thanks. I appreciate the feedback. I'm always looking for ways to improve my videos too. I know shooting in RAW is a big draw for many people. I'm not really that enthusiastic about editing. For me the big draw was the ability to run time lapse scripts. There is also a lightening script for capturing those elusive bursts of light during thunder storms. Haven't tried that one yet though.
I know exactly what your talking about. Time lapse sunsets can be tricky to capture. There is really no way I can think of to program the exposure to change incrementally to compensate for changes in light in manual mode. The only way I've been successful at this is to use auto mode. There might be a way to do it, but I'm not sure how. In manual mode you should get a nice natural fade to black with a fixed exposure time. But if you don't want this fade to black effect I'm stumped.
Thanks Irwin. I have not played around with it much. I know how to shoot in RAW but I don't use it a lot since I don't have much time for processing images. Cropping could solve the problem but that's not the best way to handle it. I wish I knew more about this issue.
@ChuckwagonCowboy cool man! I found out about it last year but never dabbled with it until I made this video. make sure you have plenty of memory on your memory card!
I'm not sure about that. To answer your other question your camera should/can produce JPEG and RAW files at the same time. The RAW files will have an extension like .DNG and are located in a different folder in the memory card.
When you take a picture in general there are 2 things that impact speed. The processing time of your camera and the exposure time (also known as shutter speed). Even at the fastest exposure time your camera still needs time to process what is happening. You can think of this as response time, or how quickly the camera can react to your finger pressing the shutter button. I wouldn't expect CHDK to improve the electrical or mechanical limitations of your power shot to get a DSLR response time.
The raw picture shows the sides of the lens as its raw, very raw, its what the sensor sees before the cameras 'jpeg' routines crop out the bit that you see, there's always more sensor than 'saved image' thats why the quoted specs show a larger pixel sensor size than the output file size, your just seeing the bit the camera normally throws away
hi Big Nate, when i use Counter.BAS i was unable to create Badpixel.bin on my Canon SX50HS
the error says "You need to be in REC-mode for this operation"
but i still have the same error in REC-mode, it says "badpixel.bin failed"
what is the problem? thanks
In the CHDK menu you will find exposure overrides. You need to enable the override and then set the time in seconds to the exposure you would like. I believe the maximum exposure is about 30 minutes.
As they say....7th times a charm lol. Glad it finally worked. I didn't really have anything helpful to suggest. I'm currently working on a new do-it-yourself video for making a low budget USB remote shutter for CHDK enabled cameras. Can't wait to get this one uploaded! probably sometime next week.
Yeah I have noticed similar issues. I just figured it was due to the fact that shooting in RAW puts all the processing power in your hands during the editing & post production phase. I haven't gotten into that too much. It may look grainy in the initial RAW format but I believe you should be able to adjust the parameters to your liking, much more so than a compressed (processed) jpg file. That's my understanding at least. Good question.
@BigNate84 I think there do have more sensor than saved image in most, its model dependent i guess, and the sx30 no doubt shows it more as they are really stretching the optics...
one thiing i have noticed is when zoomed out, the edges of the image show very bad chromatic aborations, take a wide angle shot and have a street pole at the ver left or right, then zoom that up in windows, it will have purple edges one side and green the other...
you just saved my ass for my photography class. THANK YOU
I personally don't shoot in RAW unless I'm doing night time photography with long exposures. When I do editing in RAW I use a program called Aperture.
No you don't have to create a bad pixel bin every time. The latest stable full version of CHDK with scripts and extras is about 13MB. You can use a light version if you prefer. But with an 8GB or 16GB memory card you won't notice much of a difference.
Your welcome! Thanks for the comment and for watching.
Good question. I have heard of a program called "chdkptp" that lets you view the same image as your LCD screen on your PC over a USB cable. It also lets you control all the camera functionality from your PC and transfer files between your PC and camera. I have never tried it out though. Might be worth a shot for you to look in to.
That is the only way I know how to shoot in RAW. I'm not sure what other options you have.
No CHDK will not void the warranty or damage the camera. As long as your not doing 60 minute exposures in the middle of the desert while shooting directly into the Sun you should be ok.
After you enable RAW (dng) you should also have an option to tell the RAW dng files to be stored in their own folder or with the jpeg. try looking on your memory card for a new folder where the RAW files are hiding from you.
Big nate. In comparing the like images of one jpeg to the same raw ,the jpeg image seems to be cropped when processed. So cropping the raw image works out. Also if yo take a shot at 50mm(not wide angle) it will eliminate this phenomenon as i found out. Great videos nate .Keep up the good work!!
@lezbriddon Hey thanks for the feedback. That makes sense to have more sensor than saved image size. Out of curiosity, do professional DSLR's experience the same results shooting in RAW? By results I mean seeing the inside of the lens at the corners. I wasn't sure if this occurred because I was hacking a consumer grade camera or if the top of the line DSLR's experience the same thing and require cropping when shooting RAW. Thanks!
yup this is my first ever to know about chdk. and when i took pictures i always have to wait for a long time for my camera to reset its capturing speed where you can see a hand icon appear to not touch it...
I believe there is a way to do that, though I haven't experimented with it yet. Depends on how much light you have in the shot but I would try setting the shutter speed very high and playing with bracketing.
I had thought the whole draw to "chdk" was mainly to shoot raw. I did see that one person is shooting lowest iso in certain circumstances and overexposing by one stop.. Will give that a try in my next set of pictures.. Appreciate bouncing questions of you.. Great Videos on UA-cam..
Please help: the RAW photos are coming out low res: 2088x1530 (vs 4000x3000 JPG), on Canon SX-40HS.
to fix the barrel distortion, you need to create a lens correction profile for your camera. there may be one already created by someone else... I had a similar problem with my fuji f600 exr in raw and its great now i have the fuji .LCP file installed in photoshop adobe camera raw.. where there is an adjustment tab in there for lens correction..
Hey BigNate84, thank's for your CHDK video, I installed it on my Powershot SX200 IS tonight. It took a few tries but its working. I wanted to increase my TV mode, open shutter time from 15 seconds, now it goes to 59 seconds, Eureka,"You the Man"!
I also learned about Raw from your video selection, thanks for that. When I tried to enable the create bad pixel setting I get the error message "must be in REC mode", I'm not sure how to do that. Thanks very much Bignate84.
@spex357 Oh cool! I haven't tried capturing lightning yet. What script do you use? Have posted any of your work yet? I'll just have to check out your channel now.
Well the primary goal is to use latest and greatest small point and shoot camera to mount to a Quadcopter.
But just reading more in depth about the video, the only improvements are increased bit-rate and record zoom. That being said, I would guess the GoPro3 Black will win this game. Back to the drawing boards.
Great video, you have probably found an answer to eliminating the vignetting by now but the simplest way is not to shoot at too wide an angle. If wide angle shots are necessary then you may need to go down the path of lens profiling.
nate, i found a better way to correct my distorted image and that is to go into pse 10 filters,camera distortion and play around with the distortion slider and then the edge slider. This eliminated the vignetting at the 4 corners of the image so i really do not have to crop. Have a Good One!! Also the edge slider straighted out the bowing of the desktop accessories and the curved edge of the desk.
I have never heard of this happening before. I'll need morre information to help you out. Did you use the card lock boot method or firmware update method? Have you ever gotten CHDK to work properly in the past, or is this your first attempt?
hey I have a Nikon d3200 I shoot raw cant view them on my computer tehn I have avs image converter but the text on avs is in all my photos help
I'm definitely looking forward to finding out if this is possible. I wouldn't have thought that it would be that difficult (but then, don't even ask me where to begin on how to do it).
Tethering via USB really ought to be a whole lot easier. I have heard that Lightroom does this (I don't have it, so I don't know for sure). It also seems to me that anything Adobe can do could be done by anyone else... using open source. :)
hi can you help me of this problem.
After i accp firm update are not displaying the logo of CHDK
what can i do for that problem please help me.. :(
Before you start to create the badpixel.bin first put the camera to shooting mode and after go to create it.
I hope i was clear.
@xxxxxxxJIGSAWxxxxxxx Did you have any trouble installing and running CHDK? You need to be in CHDK mode. You need to create a badpixel bin and you need to select DNG formatting. Also you need to choose what folder to put the RAW files. They can be placed in their own separate folder or be placed in the same folder with the JPEG's.
@leilatara Great! thanks for confirming this. I figured it would work in Lightroom but I've also learned never to assume anything when it comes to software. Glad you found my tutorial helpful. Let me know if you have any ideas for future CHDK videos. I want to do more with it. Its such a powerful hack.
It worked perfectly, but I'm used to shooting in continuous mode and my SX700 is so slow that I can't do that in RAW. As I'm using my camera for shooting birds I think the benefits of continuous outweigh the benefits of using RAW. It's a shame because I always use RAW + jpg with my bigger cameras, but my lenses can't always get close enough for the shots I want.
You will find the Lightening script on the CHDK Wiki, timings are crucial, get some info before going out, i ended up with nothing but learnt from my mistake, shame it hasn't lightened since
Is it possible to use CHDK on Canon PowerShot A580 for the purpose of giving it an option to record a widescreen video ? ( I dont see that option in CHDK unfortunately ). My camera can take only widescreen photos but not the video :)
Nate, soon i will start experimenting with hdr since i now can shoot in raw and take several images 1 ev. apart. I only have to find the proper shot to take for hdr. I may go down to the local grist mill and take some shots there one evening. Anyway thanks for your help!!
Its really not that difficult to make the USB remote shutter. Its making the How-To video that explains every detail clearly. That's the hard part. I usually spend at least 5 or 6 hours on each video sometimes more when you factor in shooting and editing and script writing.
So I think i'm hearing you say that the solution for lens distortion or barrel distortion is done in photoshop afterwards right? Thanks.
Good work Nate, do you have any videos on the video quality of the CHDK?
I'd like to know if any of the newer cameras with CHDK have a comparable video quality to the GoPro 3 Black. That would be amazing if we can push high bit-rate video with the sharp canon lenses.
On my main channel page there is a link to the CHDK community. So you should be able to find it that way. If you're not into social media it might not be right for you. G+ is starting to become the next facebook. If you use two step verification to sign in to a google account theoretically a hacker would have to have your cell phone or be at your land line number to hack your account. It's probably safer than most social media. I'm just trying it out for now.
I havent counted how many people i have recomended CHDK too, for Kap and Lightening i haven't found anything else as usefull :-)
Always helpful Big Nate. I wonder if you know why Canon doesn't install these relatively simple software programs on their PowerShot cameras? The camera is capable of doing all these things, why not simply install the software? Can't cost that much. Didn't cost me anything to load the software on my camera. Maybe they didn't want to increase the size of their manual.
Thanks
@BigNate84 nah my mem card is in. its a canon sx40 is my cam.:)
Thanks. Very close but not there yet. The point is that I want to take a set of photos shooting sunset to build up a time lapse movie. When I shoot in the AV mode there is a dependence of exposure on scene brightness. At the end exposure value becomes too high for me. So is there any possibility to set a limit but only when it is necessary.
I too have the problem of the 4 inside corners of the lens showing on .dng image. fstop 6.5,iso 800,fl=4mm,wide angle 24mm expos time1/2 sec. Have you found out what causes this and how to correct it in chdk raw settings or by post processing? Very frustrating. Thanks Nate and as usual great videos on raw and on install. of chdk.
Nate do you have to create bin each time you power up ? Also a CHDK question in general does in take up allot of the space on sd card limiting recording ? Thanks
lol come on bignate, the edges are black because if shot in JPEG the image is cropped (means that all sides are cut) to the maximum of the sensors area.
So the sensor can see things like they appear trough the lenses. As this is displayed with black edges, the software is set to crop it to have a nice image.
Same with all the other effects (camera distortion), .... The RAW is unedited (!). All corrections (cropping, colors, distortion) is done afterwards by camera's firmware if shooting in JPEG.
So to have nice pictures with RAW its your task to do that yourself!
i cant seem to get pictures in my memcard on chdk settings im a newbie how can i do this? can you make a whole tutorial on how to use the ins and outs of chdk settings?
Please help! whenever I try to create the badpixel.bin it says it fails!
Thanks for the suggestion. I'll add it to my list for future videos. I'm currently working on a USB remote shutter release video. What camera are you using? Did you forget to put the memory card in lol?
Hello BigNate84. Your tutorials are extremely helpful to a novice like me...Enabling dng format was helpful thanks :)... I have a question and I'm wondering if you can help me out. Is it possible to have pc control of the camera while shooting the raw images ?
I have an SX40 HS. If it matters, my camera uses the "1.00i" version of CHDK. I have tried 4-6 times to create the badpixel.bin (Step 3) - and each time I am told the process has failed - try again. HELP!
hy , i saved the settings but it doesn't save the pictures on my sd card in the raw format , it still saves them in jpeg , to i have to save the settings somehow , or what ??
please help
Hi, I have a question. After I do this should it say the file type is RAW or will it still say JPEG, because mine still says JPEG.
Why chdk goes when I switchoff the camera and turn on again ?
RAW is not necessary. Its nice to have the option but in reality if you're not a hardcore photographer it creates more work to process each image manually. It gives you more artistic control if that's what your going for. I think of RAW as a nice tool to have in your tool belt when you feel like you need it. But then again I'm a hack..
when i shoot my camera it keeps hanging up if i turn on my chdk settings. how can i use this settings.
You know let me know if you can create a script to create movies in 60fps?
hey bignate.... is there a way to increase continuous shooting, for sports events...
I use A710is camera with CHDK.. When i want to import DNG files in Aperture 3.5, it shows thumbnail in import window but once imported, i get unsupported format for all the dng files.. I created the bad pixel.bin. Inside camera... Any help would be apreciated..
I did step 3 however I got the msg. "fail to load _dng.flt: file not found" (sd550)? I also got the fail to load for the games too..
what is also the fastest shutter speed settings for the chdk? cause im having to wait a while in some of my shots.
Hi,Big Nate 84! Nice tutorial! But do you know how to set a LIMIT on the maximum exposure using CHDK?
For some reason am not able to create bad pixel bin. When I try it my screen blinks but camera takes no pic. Still not seeing DNG on my computer not even on Lightroom 4.
Did you select DNG as the extension?
yes I did; not sure what am doing wrong.
Also noticed my menu choices are different than the ones you showed on the Shooting raw with CHDK for beginners video. For example, I do not have the Bad Pixel Extraction choice...Perhaps my version is not right for my camera.
well with each version of CHDK the features and menus change slightly. so you would need to be comparing the CHDK versions.
Ok got it.
is this normal? second point, the jpeg image is automatically cropped if I compare it to the RAW one, but if I put on Photoshop jpeg image over the RAW image, some part of image is missing in the RAW image because of the black corners, I thought RAW image would fit the JPEG image because the frame is supposed to be bigger i RAW format. I use a SX40HS, thanks!
I really don't know what the problem could be.
Big Nate Question for you.. When you installed chdk and shoot in raw (dng) do your pictures look grainy? what are you shooting in? Manual? AV? TV? when i shoot manual the raw pic looks Crappy but the img looks fine.. Wen i shoot auto the raw picture looks Fine.. Have you noticed same?
Sorry for all the questions!!!
Great video BIG NATE!
thank you for your clarity . all your tutorial is exceeded in use.
thank you BigN
@Okiss77 I appreciate the feedback!
Thanks for the tip. Haven't heard of that yet.
So your shooting in raw on the sx30is. How have you been editing your pictures so they look decent. What program are you using?
my camera SX40 HS with ckdk is pulling in raw fisheye effect
THANKS A LOT! COME TO MY HOUSE IN OAXACA MEXICO, I´LL INVITE THE TACOS, AND TRUST ME ON THIS: YOU HAVE NEVER TRIED A REAL TACO. YOU EARNED IT.
hi nate thank you for sharing your tips! I've just followed your tutorial but I have 2 questions :whenever I take a picture in RAW format my camera processes a second image in JPEG format with the same name
Thanks Nate
will it void the warranty, the CHDK? and is it dangerous for the camera any risks? thanks in advance.. i subbed :)
BigNate if i sign up on google plus how would i find the chdk community? What category would it be under. I"m not into facebook,twitter or the like so what would be the advantage of google plus other than the chdk commun. started by yourself. And how safe is it as far as being hacked. Thanks!!
Nice work! Glad you were able to find a solution. Thanks for sharing your results. I also started a CHDK community on Google+ if you want to share your pictures and join the discussion. Have you experimented with HDR yet?
Great videos BigNate84. I loaded CHDK on my SX50HS camera. Got all the various menus, etc. How do I make them work? Do you have a video of that process? For example a simple thing like "flashlight" is on the menu. I choose it and nothing happens. The LCD screen is supposed to light up. Doesn't. Help.
Thanks
You need to get familiar with the toggling CHDK mode (turning it on and off). For the flashlight feature do this. Navigate to CHDK Main Menu --> Miscellaneous Stuff --> Flashlight --> PRESS FUNC SET --> Exit the CHDK Menu --> Toggle CHDK mode to OFF --> Your camera screen will light up similar to a flashlight app on your phone.
BigNate84
Thanks Nate. How do I toggle CHDK mode to off?
same way you toggle to on mode.
BigNate84
Does it make a difference if my sd card is bootable?
Thanks
I don't think so
Thanks for confirming this. That's what I figured.
great tips, thanx man
Never heard of it.
Of course... the very next time I tried, it succeeded. :D
Thanks for this video.