Chris Knight - Learning Exposure and Light Meter Basics

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  • Опубліковано 4 лют 2024
  • Chris Knight teaches using a light meter to measure flash, continuous light and a combination of both constant and strobe lighting with the Sekonic L-858D light meter. This 45-minute video is a full course in measuring light from a master portrait photographer.
    Watch Part 2: • Video
    Learn More:
    Sekonic L-858D-U - bit.ly/47O4Kij
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КОМЕНТАРІ • 109

  • @andynichols2979
    @andynichols2979 Місяць тому +2

    This is easily one of the best lessons on controlling light I've ever watched. I will absolutely be referencing this again and again.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      So glad you found the value in the video! We have more video content planned, so stay tuned!

  • @tivadarorosz
    @tivadarorosz 2 місяці тому +2

    This video was eye-opening. I learned so much. I have been following Chris's work for a while, and I love the art he creates.

  • @AbSesayPhoto
    @AbSesayPhoto 5 місяців тому +5

    Well done Chris! A pleasure creating this with you.

  • @tylert1762
    @tylert1762 19 днів тому +1

    I want to be like you when I grow up🙌

  • @benpearsephotography
    @benpearsephotography 5 місяців тому +3

    Love my sekonic L-858d meter and as always wonderful insight, delivery and artistic vision from Chris...

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      I appreciate your feedback and I'm glad you're enjoying the content.

  • @antoniojones6550
    @antoniojones6550 5 місяців тому +1

    This was super helpful! I enjoyed the insight about the histogram and using the grey card...and demonstrating with the a strobe AND continuous light was an absolute treat. Thank you!

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you for watching and appreciating the effort put into the content!

  • @diegosolari3101
    @diegosolari3101 5 місяців тому +2

    Great video with a great instructor!

  • @RonK
    @RonK 5 місяців тому +1

    Chris Knight, Master of methodical approach and adjusting for small differences. Those are some awesome photographs at the end, wow.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thanks for the shoutout, glad you liked the photos at the end!

  • @luissalazar2021
    @luissalazar2021 2 місяці тому

    You got so many great stuff, I highly appreciate your teaching. Please keep sharing.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you. We are definitely looking to do more educational content.

  • @micheldhersin
    @micheldhersin 4 місяці тому +2

    Maybe the most helpful video I have seen , so many great information

  • @kellymorvant
    @kellymorvant 5 місяців тому +3

    I like the models expressions while Chris was talking. 😊

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      I appreciate you taking the time to appreciate the little things in the video.

  • @davidrobinson3465
    @davidrobinson3465 4 місяці тому +2

    Such an informative, inspiring video! Thank you

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      I'm glad you found the video informative and inspiring!

  • @Shalin.S.Shah.
    @Shalin.S.Shah. 2 місяці тому +1

    Precision to the highest degree! At a point where the talent was stunned that he looks that good! Chris Knight is a magician, and for a reason!
    I got to know Chris when my wife gifted me Chris Knight "The Dramatic Portrait" book. Highly recommend. They even have a video series on this (couple of hours of course is uploaded on UA-cam for free, the full course can be purchased from his webiste).
    Incredible stuff!
    Just got my Sekonic L-478DR lightmeter. Excited!

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      We love working with Chris as well. Glad you enjoyed the content.

  • @Maz-2393
    @Maz-2393 2 місяці тому

    Good explanation of how to measure, treat and manage continuous and strobe lights! Cheers Chris.

  • @wellsyboy
    @wellsyboy Місяць тому

    If I wanted to be a teacher I would model myself on this guy - forget the internet - easily one of the best teachers I have ever seen - superb session on metering light Chris - thank you.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you for your kind words, we will pass this along to Chris!

  • @andriejusradcenko2895
    @andriejusradcenko2895 5 місяців тому

    That was very interesting and useful! Thank you! ❤

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you for your kind words! I appreciate your support!

  • @markothwriter
    @markothwriter 17 днів тому

    good job Andy.

    • @SekonicGlobal
      @SekonicGlobal  13 днів тому

      Thanks 👍 we love working with Andy.

  • @marybelphotography
    @marybelphotography 2 місяці тому

    Loved this course…I don’t use a light meter but now I am considering it since I finally understand how to use it thanks to Chris’s teaching.

    • @SekonicGlobal
      @SekonicGlobal  2 місяці тому

      We're so glad you found what you needed in the video!

  • @izgecomer
    @izgecomer 5 місяців тому

    A real gem, thanks.

  • @CryptoJones
    @CryptoJones 5 місяців тому +1

    I bought a Sekonic Light meter after taking Chris Knight's Dramatic Lighting for Portiturue course.

  • @biddy105
    @biddy105 5 місяців тому +1

    Fantastic Tutorial, thank you ✌️. I always need reminding that the strobe only lives within 125th of a second, so the slower shutter speeds don't affect it 🤯💡.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      You are correct. As long as the shutter speed is shorter than the duration of the flash, the shutter has no effect on it. I am just answering with more clarification after seeing some of the other comments.

  • @DavidPerry.
    @DavidPerry. 4 місяці тому +1

    I have two Sekonic light meters. I clearly need to start using them more! :)

    • @TheCatholicRemedy
      @TheCatholicRemedy 2 місяці тому

      for 500 bucks a pop i can not for the life of me figure out why you havent! I am starting a business and would like one but i can not afford it at this moment as money is tight, I'll take one off your hands! xD

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you for sharing! It's awesome that you have two Sekonic light meters to work with.

  • @ohnoflicks
    @ohnoflicks 5 місяців тому

    I love my meter!

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you for sharing your love for the meter! It's great to hear you're happy with it.

  • @propsbe
    @propsbe 5 місяців тому +2

    thank you Chris, that's how i learned it at our photo school in the seventies, i'm using a sekonic 308 ever since, now using a lot of times a 478, beautiful meters

  • @da_crusher
    @da_crusher 5 місяців тому

    Wow. What a course! It really resonated with me. Thank you, Chris and Sekonic.

  • @rajesh071179
    @rajesh071179 5 місяців тому

    Really need this

  • @andyvan5692
    @andyvan5692 5 місяців тому +1

    great video, but one thing the shutter speed does affect in flash, is the spread of the light, if the slit in a curtain shutter (slr's ) is too small, aka a too fast speed, the short burst of light only scans the sensor, so is an ever shortening band of light in the middle or upper/lower third of the image; leaf shutters ALWAYS open fully so you don't get this problem. But from what people say (UA-cam), the shutter speed does allow in ambient, non flash light, so if you just want flash, you set this so no ambient is captured; then the iso takes over, in determining brightness of the scene.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you for the clarification. We believe Chris was speaking in general terms if you are within the flash sync range of your camera.

  • @PhotographyOnLocation247
    @PhotographyOnLocation247 5 місяців тому +1

    Great job! Having gotten Part. 1 out of the way I’m looking forward to seeing Part 2, ie High Speed Sync and other exposure techniques.

  • @Nat.ImagesLarge.F.Photographer
    @Nat.ImagesLarge.F.Photographer 9 днів тому

    Sekonic,please video about Landscape Photography,thank you!

    • @SekonicGlobal
      @SekonicGlobal  7 днів тому

      We'll pass this along to our team, thank you for the feedback!

  • @RayFortYukon
    @RayFortYukon 5 місяців тому +4

    correction: cameras have reflective light metering - not incident as stated a couple of times in the video.

  • @morrisonAV
    @morrisonAV 14 днів тому

    My apologies if I missed it, but did he ever say where to point the meter's dome when taking his readings?.....and why?

    • @SekonicGlobal
      @SekonicGlobal  13 днів тому

      Two general rules. To measure the brightness of each light source, you should point the light towards the light source. To get an overall exposure, you should point the dome towards your camera from the subject's position. Wherever the dome is, it will give you the light reading of the light falling on that surface.

  • @juny1624
    @juny1624 5 місяців тому

    Absolutely love using a light meter. I don't understand the hate behind them. Faster more consistent results. What more can one ask for?

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      We agree, and appreciate you Juny.

  • @Superbustr
    @Superbustr 3 місяці тому

    Cameras don't only average exposure information. Cameras evaluate the light of a scene depending on what metering mode you select. If you select matrix metering the camera will average out the entire scene. If you select spot metering the camera will only give you a representative light value reading for that spot, which normally only cover a 5% to 1% area where the spot is located.
    Also the reason why his shots were underexposed slightly even after taking a meter reason is that most lens's aperture readings are not completely accurate. It varies from lens to lens but more often than not your lens often around 1/3rd a stop off (and can vary, depending on the lens). So if you think you are getting F2.8 you are really getting f3.2 or to be more specific T3.2. To solve this issue you would need to use exposure compensation in the meter.
    Complicated stuff if you're not familiar with it and when the guy in the video is not being 100% clear.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      Great explanation! Chris did a great job giving an overview, and we want to keep this video simple for beginners. More advanced videos to come.

  • @jamesg1974a
    @jamesg1974a 5 місяців тому

    You’re no Lindsay Adler 😂😂. Just teasing. Great video, very informative

    • @jean-claudemuller3199
      @jean-claudemuller3199 4 місяці тому

      Lindsay Adler and Chris are a couple in the real life !

    • @jamesg1974a
      @jamesg1974a 4 місяці тому

      @@jean-claudemuller3199 I know. That’s why I made the comment with the laughing 😂 emoji

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thanks for the support and the playful tease! Glad you enjoyed the video!

  • @trimatije
    @trimatije 4 місяці тому

    I understand this is a studio and he can add fill flash on the other side so he can measure both flashes and put it in the middle, but if you're outside and have high contrast situations, shouldn't you measure toward the camera to get in the middle of dark and light side of face as if you measure toward the sun other side will be underexposed?

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      The goal of metering sometimes isn't only for exposure, but also to balance lights. So if the sunny side is over exposed, you can ad light to the other side to balance it out, and use the meter to dial in the ratio or relative exposure difference.

    • @SekonicGlobal
      @SekonicGlobal  25 днів тому

      It a judgment call, there is no right or wrong way. If you expose for the highlight Side you preserve your highlights, and if you expose for for the shadow side you may blow our your highlights but see more detail in the shadows. In this scenerio I would expose for the highlight side and fill in the shadows.

  • @normtesch1126
    @normtesch1126 17 днів тому

    im confused with exposure...people on you tube try to compare cameras to justify what they bought....they say that say there is a difference between cropped to full frame to large format....if that is true why doesn't the light meter have a button to switch the camera you are using??

    • @SekonicGlobal
      @SekonicGlobal  13 днів тому

      Each camera will have an ISO, A shutter speed, and an aperture. A light meter allows you to enter two values and give you the third.

  • @MultiEski
    @MultiEski 4 місяці тому

    Chris you look like Davey Havok :)

  • @bartekdabrowski8391
    @bartekdabrowski8391 5 місяців тому +2

    Qiuck question, probably to you Seconic people - I'm having this situation, where the measurements are giving me underexposed photos, no metter what system I'm using. Had this issue with Nikon DSLR, now I'm having same thing with Sony mirrorless. It's usually -0,5 to -0,7. Am I doing something wrong? I'm using L-508. Thanks :-) To Chris - it's interesting to watch, how gradually you go from explaining technical stuff to focusing on the photo itself. It seems you get drawn to photography, and less and less think about technical aspects ;-)

    • @harpenfluit
      @harpenfluit 5 місяців тому

      Do you position the meter with the dome facing the light source? That is correct. Don't aim to the camera. Next, verify your meter's accuracy using an 18% gray card. The peak of the 18% patch should align precisely in the middle of the histogram. If you find that your shots are still underexposed, consider calibrating the light meter specifically for your equipment.

    • @SekonicGlobal
      @SekonicGlobal  5 місяців тому +1

      You can contact customer support and have you meter sent in for calibration. To know if it is user error we would need to see how you are meter, what the lighting situation is.

  • @olympusfotograph
    @olympusfotograph 5 місяців тому

    Dear @Sekonic
    Team, Thank you for all of your Videos. But why is the Myth about the 18% grey still valid? I am using the L-858 (love it sooo much!!) and for Spotmetering in the Specs is written for Spot: K = 12,5 which means Spot is calibrated for 12,5% Grey. This is 1/2 Stop Difference to 18% grey. The Incident Methode is calibrated by Light, C=340 with extended and C=250 with retracted Lumisphere. 18% Grey is not the middle of the Histogram. 50% grey is the middle with Tonevalue 128/128/128. Why not stop and break the Myth about 18% Grey Calibration?? 😊

  • @silekiernanphotography
    @silekiernanphotography 2 місяці тому

    Oops, cameras typically have reflective light meters.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      Yes any camera meter through the lens is reflective.

    • @silekiernanphotography
      @silekiernanphotography Місяць тому

      @@SekonicGlobal Yes, I know that. I was pointing out the error in the video.

  • @mibophoto
    @mibophoto 5 місяців тому +1

    Sorry my photographic friend, you don't need a grey card behind a flash meter with the 18% dome facing the light source.

    • @rzorrilla52
      @rzorrilla52 5 місяців тому +1

      Gray Card can be used as a sanity check when viewing histogram and in post for White Balance Adjustment for that specific lighting setup.

    • @harpenfluit
      @harpenfluit 5 місяців тому

      @@rzorrilla52 Yes, but only if you capture a photo from that position. ;) I agree with @mibophoto. However, it's possible that he did so out-of-habit to shield the eyes of the model from the bright light, especially if he always uses a flash in his photography.

    • @SekonicGlobal
      @SekonicGlobal  5 місяців тому +7

      Chris is using the 18% as a known value so when looking at the picture he is taking of the model holding up the 18% grey card you can see he is getting a correct exposure. The grey card is not part of his metering technique, but a tool to show where a properly exposed 18% grey will appear on the histogram.

    • @Roman_4x5
      @Roman_4x5 5 місяців тому +3

      Sorry my photographic friend, but he never said or suggest that you need it.
      Comprehension problems 😂

    • @harpenfluit
      @harpenfluit 5 місяців тому +2

      @@Roman_4x5 It is naturally confusing for people watching this video. Chris consistently places the gray card behind the meter when he takes a measurement. That's not necessary and seems more like a habit as I mentioned earlier. Photographing a gray card can be useful if you want an extra check to see if you've made a correct measurement, but that shouldn't be necessary with this meter.

  • @gerhardwiesinger
    @gerhardwiesinger 5 місяців тому +12

    The light falloff is not exponetiell as mentioned. It is quadratic only. double distance => one quarter of light. 4 times nearer, 16 times more light. On a logarithmic scale +1 stop is doubling the light.

    • @zucchina24
      @zucchina24 5 місяців тому +1

      Repass your math… 😉

    • @jean-claudemuller3199
      @jean-claudemuller3199 4 місяці тому

      You are not right as the photographer controls mostly light falloff with the edge vignetting of the modifier, distance falloff is seldom used alone and sometime as a mix, so math is not able to assess the falloff, only feeling of the photographer

    • @therealBocaStudios
      @therealBocaStudios 4 місяці тому

      Years ago I made a chart for speed lights and posted it online, which got quite a buzz. It was a guide that works off these principles you bring up, allows the photographer to look at the distance he has his light setup and choose a power setting..it goes something like this. At 32’ Full power, 16’ 1/2 power, 8’ 1/4 power, 4’ 1/16power, 2’ 1/64 power, 1’ 1/256 power ..full disclaimer those distances and power outputs might be off, but could be figured out. Those are perfect exposures, if one needs darker or brighter just move the light distance (easy) or change the power output at the current distance. I haven’t done this with studio lights but your comment reminded me i should make a chart for these as well. Those in the reply’s to your comment show they don’t know how to use lights properly, if a subject is at both 2’ and 4’ away from the light source it will be brighter at 2 and darker at 4, just as if the light is at 16’ and the subject is 16’ and 18’ away from the light it will be more evenly lit because math always works.

    • @gerhardwiesinger
      @gerhardwiesinger 4 місяці тому +1

      @@jean-claudemuller3199 Of course, all additional effect have to be added. But the "inverse square law" is always there.

    • @gerhardwiesinger
      @gerhardwiesinger 4 місяці тому

      @@therealBocaStudios Can you provide those charts?

  • @mohamedmonir4373
    @mohamedmonir4373 5 місяців тому

    Amazing, well done.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      Thank you so much for your kind words!

  • @markothwriter
    @markothwriter 17 днів тому

    the meter has not helped me understand anything. it just gives me the answer like a hand-held calculator

    • @SekonicGlobal
      @SekonicGlobal  13 днів тому

      How can we help you. What are you trying to understand?

  • @MrDvaz
    @MrDvaz 5 місяців тому +1

    really sorry but this is one of the most boring videos that I have ever watched....a lot of talk and mistakes!

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      We want to mix in some long-form content that slows things down a bit based on the extensive feedback we have received from users. Sorry, this was not for you. Looking forward to your feedback on future videos.

  • @edgardomoctezuma871
    @edgardomoctezuma871 2 місяці тому +1

    It was painful to listen to the explanation. If you used, every time, the actual f numbers, you would not get lost in illustrating your point.

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому

      We hope we have other content you enjoy. Chris is an amazing teacher and huge asset to the photo community.

  • @Nicosalgadophotography
    @Nicosalgadophotography 5 місяців тому

    just beautiful learned a lot @chrisknightphoto .

    • @SekonicGlobal
      @SekonicGlobal  Місяць тому +1

      Thank you so much! I'm glad you found the video helpful.

    • @Nicosalgadophotography
      @Nicosalgadophotography Місяць тому

      @@SekonicGlobal its incredible I saw his at studio last week I said Oh My God!!! this is amazing definitely wow great I can even measure shadow :) .