My brother was into Speleology and he would go alone sometimes, greatly dissuaded by everyone and for good reasons. He went on one of those trips, didn't tell anyone, and disappeared. 5 years later the police found his body. His body was just bones. So nope, cave exploring is not for me.
I've been thinking about getting a full spectrum conversion by Kolari for quite some time but I was always so unsure about how it would work out with the customs fees and everything (I'm german). I was scared that it would cost way more than anticipated and that it might not work at all because I forgot part of the paperwork. Could you maybe do a video about how you did this step by step? I guess there isn't much of a difference between France and Germany. I would very much appreciate it. Thanks for the video!
I believe you are just hung up on the Customs cost, maybe check what would electronics items custom duty is and rest you can clarify on kolarivision itself. They have very intuitive way of telling you what filter will result in what image and rest is all experimenting. Good luck!
Mathieu thank you for sharing your passion and I'm happy that it pays off in views (whatever that may bring you). I hope you never lose this eagerness to experiment and show us the results!
Have you tried flash inside caves? Flash has an incredible ammount of IR wave lenght. Never tried it, been to maybe two caves in my life and I didn't have a converted camera on me, but if you go regularly you might get something interesting. Of course for that kind of space you'd have to use a dedicated flash unit but I assume you have one. On camera flash will probably come out short.
Those pictures are amazing. There are so many hidden beauties that our eyes just cannot see. I also wonder, does adding the IR filter reduces the sharpness of the pictures?
you should consider a multispectral or even hyperspectral camera. maybe something beyond the near infrared? by having many more channels available you can mix the resulting RGB image in many exciting ways - they don't have to be additive or chromatic order at all.
This is shockingly beautiful. Tourism boards need to add addressable RGB lighting to caves so you can see this with your own eyes. Then watch visitor numbers go through the roof!
They do, this is what you're looking at. Without the lighting the pictures would be black. Mamouth Caves in Kentucky has a great lighting display and they make sure to shut the lights of for several seconds to show you blackness!
The colour seem to come from the light sources and not so much the stone itself. The photos are stunning, don't get me wrong, but I was expecting or hoping different colours in the stone.
Great video and photographs. If anyone is interested, it is possible to do infrared photography with an unmodified camera by using an infrared lens filter (Hoya R72). The main drawback of this approach is that it will require lower shutter speeds and some lenses exhibit IR hot spots (the center of the image will contain a bright blob), but it's a great way to try infrared photography without investing in camera modification.
awesome man! did you have any gamma clipping or maybe some kind of color clipping? because I see how saturated the color are and I don't know anything about such a way to shoot
Hi Mathieu! :) Happy Tuesday! :) I wanted to quickly ask what is the name of song at the (5:14-6:34) mark. I really love the the track you chose here. Also was this track from Epidemic Sounds?
I love infrared photography! I have a plan to do a full spectrum conversion on a Z7 camera if I find a good cheap used one. With the conversion, it'll cost me as much as a new Z7II, that's my justification to get something that gives this unique look both to B&W as well as coloured photos.
Very cool! Out of curiosity, is there a particular reason why there are only IR stills, no video? Lack of light maybe? Et salutations de Californie Mathieu!
I love to photograph in Caverns, there are some close to me in here is the US in Pittsburgh, PA (Laurel Caverns near Uniontown PA) which are great fun to visit and photograph. My neighbor also recently went on a National Geographic tour of caves in France and Spain which feature cave paintings. She's a retired anthropologist and all around fascinating person!
Just imagine if we could get quad, or even more, -channel cameras. Where in addition to Red, Green and Blue, you could get Infrared, UV, or even multiple of IR/UV frequencies, it would give so much more room to play around with color
Beautiful photos. I haven't tried it in a cave but small calcite (terrestrial weathering) veins in my extraterrestrial rocks :) (meteorites) can give quite a bright white fluorescence when hit with an easy to get 365nm longwave UV LED. I am curious if calcite in caves also fluoresces. Could possibly make an even more interesting false-color composite photo. For best effect you need a UV-pass (VIS-block) filter for your flashlight as UV LEDs still emit some visible light in the far violet/blue range.
Yes, I was wondering the same. Also, I wonder what would happen with a flash, especially if the exposure could be made a small time _after_ the flash fires, instead of being synchronised with it.
Waow. The picture you took with the boat, in the cave, is trully beautiful. The pictures of the outside world are incredible too. Un plaisir de te suivre depuis toutes ces années :)
Amazing, I have always been confused with infrared photography if those colors obtained are post processed or direct. I have a Hoya R72 that when I took photos in a green field, everything turned pink.
I've purchased the infrared LUT WAY back, but I lost it and the download link doesn't work anymore. I contacted you via email, but never got the answer.
Looks awesome! Btw it is possible to shoot infrared photos on un-modified camera. Just the exposure time will be much longer. and I think would be nice to have a tripod, but that's not a big problem for landscape shots. Also today I played with an old compact camera with CCD sensor- colors are so beautiful, as people say "film-like".
Yes it is possible! You simply need an screw-on infrared filter, which will be absurdly dark as it only allows infrared light to hit the sensor, so yes the exposure times will be quite long! However, the images will appear nearly monochromatic with heavy contrast as the sensor is not really made to "understand" those wavelengths of light.
Very enjoyable video, well done 👍👍 I have a Nikon D7100 full spectrum modified, which IR filters do you recommend I get? Any specific favorites? Thanks.
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Ma Chaine en Français / My french Channel : @mathieustern-fr
My brother was into Speleology and he would go alone sometimes, greatly dissuaded by everyone and for good reasons. He went on one of those trips, didn't tell anyone, and disappeared. 5 years later the police found his body. His body was just bones. So nope, cave exploring is not for me.
sorry to hear that, we only did very safe visits, nothing really dangerous.
Sorry to hear about your brother mate. I hope you’ve found a way to make peace with it all over the years
I really loved that castle reflection framed with orange leaves. Your photography is wonderful.
I've been thinking about getting a full spectrum conversion by Kolari for quite some time but I was always so unsure about how it would work out with the customs fees and everything (I'm german). I was scared that it would cost way more than anticipated and that it might not work at all because I forgot part of the paperwork. Could you maybe do a video about how you did this step by step? I guess there isn't much of a difference between France and Germany. I would very much appreciate it. Thanks for the video!
I believe you are just hung up on the Customs cost, maybe check what would electronics items custom duty is and rest you can clarify on kolarivision itself. They have very intuitive way of telling you what filter will result in what image and rest is all experimenting. Good luck!
There are companies offering conversion in Germany. Why choose a US company?
Mathieu thank you for sharing your passion and I'm happy that it pays off in views (whatever that may bring you). I hope you never lose this eagerness to experiment and show us the results!
I appreciate that!
Looks like Minecraft caves with shaders on
Have you tried flash inside caves? Flash has an incredible ammount of IR wave lenght. Never tried it, been to maybe two caves in my life and I didn't have a converted camera on me, but if you go regularly you might get something interesting. Of course for that kind of space you'd have to use a dedicated flash unit but I assume you have one. On camera flash will probably come out short.
Infrared photography is all about which filters you're using and how you treat the RGB channels in post. Would be nice if you'd listed some details.
Damn, that was very unexpected!
Those pictures are amazing. There are so many hidden beauties that our eyes just cannot see. I also wonder, does adding the IR filter reduces the sharpness of the pictures?
you should consider a multispectral or even hyperspectral camera. maybe something beyond the near infrared?
by having many more channels available you can mix the resulting RGB image in many exciting ways - they don't have to be additive or chromatic order at all.
This is shockingly beautiful. Tourism boards need to add addressable RGB lighting to caves so you can see this with your own eyes. Then watch visitor numbers go through the roof!
They do, this is what you're looking at. Without the lighting the pictures would be black. Mamouth Caves in Kentucky has a great lighting display and they make sure to shut the lights of for several seconds to show you blackness!
The colour seem to come from the light sources and not so much the stone itself. The photos are stunning, don't get me wrong, but I was expecting or hoping different colours in the stone.
This same effect could be achieved with normal colored light. I was expecting the cave itself to do crazy things
@@seemysight same!
This content will never cease to amaze me
Great video and photographs. If anyone is interested, it is possible to do infrared photography with an unmodified camera by using an infrared lens filter (Hoya R72). The main drawback of this approach is that it will require lower shutter speeds and some lenses exhibit IR hot spots (the center of the image will contain a bright blob), but it's a great way to try infrared photography without investing in camera modification.
awesome man! did you have any gamma clipping or maybe some kind of color clipping? because I see how saturated the color are and I don't know anything about such a way to shoot
Loved the way you presented this right down to the sound design.
Where is the castle with the sheep in the moat at 7:31?
Château de Castelnau-Bretenoux
@@MathieuStern Thx! ❤
Hi Mathieu! :) Happy Tuesday! :) I wanted to quickly ask what is the name of song at the (5:14-6:34) mark. I really love the the track you chose here. Also was this track from Epidemic Sounds?
I love infrared photography! I have a plan to do a full spectrum conversion on a Z7 camera if I find a good cheap used one. With the conversion, it'll cost me as much as a new Z7II, that's my justification to get something that gives this unique look both to B&W as well as coloured photos.
oh my god these are really incredible
Really cool how white light turns into colored light on the infrared camera!
These look great. Job well done.
Very cool! Out of curiosity, is there a particular reason why there are only IR stills, no video? Lack of light maybe?
Et salutations de Californie Mathieu!
I love to photograph in Caverns, there are some close to me in here is the US in Pittsburgh, PA (Laurel Caverns near Uniontown PA) which are great fun to visit and photograph. My neighbor also recently went on a National Geographic tour of caves in France and Spain which feature cave paintings. She's a retired anthropologist and all around fascinating person!
Lacave cave? It's near Laroad road, next to Lachurch church.
Have you try Sionyx camera ?
Hey Mathieu, absolutely amazing, makes me want to get an IR camera!
wow, thanks!
you should totally, even a cheap converted one, it's a lot of fun
I wonder what happens if you use an IR flashlight as the artificial light source?
good question !
Just imagine if we could get quad, or even more, -channel cameras. Where in addition to Red, Green and Blue, you could get Infrared, UV, or even multiple of IR/UV frequencies, it would give so much more room to play around with color
Beautiful photos. I haven't tried it in a cave but small calcite (terrestrial weathering) veins in my extraterrestrial rocks :) (meteorites) can give quite a bright white fluorescence when hit with an easy to get 365nm longwave UV LED. I am curious if calcite in caves also fluoresces. Could possibly make an even more interesting false-color composite photo. For best effect you need a UV-pass (VIS-block) filter for your flashlight as UV LEDs still emit some visible light in the far violet/blue range.
Thank you! that gives me a lot of new ideas !
Yes, I was wondering the same. Also, I wonder what would happen with a flash, especially if the exposure could be made a small time _after_ the flash fires, instead of being synchronised with it.
What is the name of this song?
which one ?
@@MathieuSternthe one that plays from 4:10. Reminds me of the Netflix series Darkness
Waow. The picture you took with the boat, in the cave, is trully beautiful. The pictures of the outside world are incredible too. Un plaisir de te suivre depuis toutes ces années :)
Thank you very much! Merci de ton soutien
how to use infrared filter in nikon z6ii
Amazing photos, keep doing it.❤
Thank you 🙌
Love your videos!
Glad you like them!
Wow, c'est vraiment trop beau. T'es un vrai artiste, tu experimente cherche de nouvelles façons d'utiliser une caméra et j'adore ❤
Merci beaucoup !
Amazing, I have always been confused with infrared photography if those colors obtained are post processed or direct.
I have a Hoya R72 that when I took photos in a green field, everything turned pink.
I would like to go there in caves with UV-light, IR-light lamps, Is it foribidden to do that?
I let you guess the answer :))
I've purchased the infrared LUT WAY back, but I lost it and the download link doesn't work anymore. I contacted you via email, but never got the answer.
send me another email, i will check my spam box
@@MathieuSternThanks for the answer. I contacted you through the form on your site. I think I did the same the last time as well.
Absolutely amazing, mind blowing images. Beautiful work. Thank you for the video.
Glad you enjoyed it
Looks awesome!
Btw it is possible to shoot infrared photos on un-modified camera. Just the exposure time will be much longer. and I think would be nice to have a tripod, but that's not a big problem for landscape shots.
Also today I played with an old compact camera with CCD sensor- colors are so beautiful, as people say "film-like".
Yes it is possible! You simply need an screw-on infrared filter, which will be absurdly dark as it only allows infrared light to hit the sensor, so yes the exposure times will be quite long! However, the images will appear nearly monochromatic with heavy contrast as the sensor is not really made to "understand" those wavelengths of light.
I have no idea you're into cave exploring. Which one is your favourite? 😊
I think the ones with paintings are a real plus, Lascaux was mindblowing
This is really freaking cool. Thanks for sharing with us
Glad you liked it!
Aren’t those colors coming from the artificial lights, as you said earlier?
exactly !
You should use Topaz AI denoiser 2.0 to remove that noise.
Cool! :)
Good work!
Mathieu should be on the discovery channel or national geography. You’re a diamond of a photographer.
Amazing photos
Many thanks
@@MathieuStern the one at 5:20 ? I love the somewhat alien vibe. It fits so well!
btw. what are those small shining green dots on the last picture?
This is next Level
Very enjoyable video, well done 👍👍 I have a Nikon D7100 full spectrum modified, which IR filters do you recommend I get? Any specific favorites? Thanks.
i think you can first play with an orange filter , then if you have the budget go for the IRchrome filter
Tres Bien!!!!
That some users are not subscribed, just shows how bad the algorithm is!
5min 11sec that shot
right ? actually it's a stitched panorama made of 8 photos because my lens was just a 28mm :))
Sony BRAVIA next TV lineup: hire him
Impressive
Great content as always but way too many ads 😢
Noted
i thought the thumbnail said "i farted"
It looks like caves from No Man's Sky
IMO, The daylight photos look much better than the cave photos which look lit by some cheap Gamer PC™RGB lights.
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