I've used D70S, D80,D90 and D7000 up to 2014 and now I am using D7100 . According to my observations during years they all have a bad red color performance . The red color of red flowers can not be obtained with the camera . Besides sometimes the red color is just like '' overexposed '' and no details . What is the reason for that ? Is it avoidable , is there a solution for this problem ? Or is it destiny of all Nikons ? ( no problem with the other colors )
Fri 18-Apr-14 10:02 AM | edited Fri 18-Apr-14 10:03 AM by elec164
It's not just Nikon and I believe it has to do with the spectral response of silicon.
Red penetrates silicon more easily and deeper, making it more problematic than green or blue even though the Bayer sensor is more sensitive to green (as many green sensel's as blue and red combined). The solution would be if the camera manufactures would provide a histogram based upon the actual raw data so we can see if a sensel is reaching saturation.
But presently all we have is a histogram based upon the embedded JPEG. you can check the blinkies and histogram for clipping, but you have to keep in mind that the clipping may mean sensel saturation, or clipping due to colors space limitation or PP due to Picture Control choices.
I have used D50, D300 and now D4 and I never had a red issue with the Nikons. Even the AW100 shows red colors pretty fine. So this is now my question: What WB do you use? Are you shooting Raw or Jpg? I am asking because a friend of mine had some color issues with his D4 (he is only shooting jpg). When he set WB to auto and picture control to vivid everything was fine with colors.
thanks for the answer . My WB is generally in AUTO mode and picture contol is in VIVID . I was shooting JPG but just began RAW + JPG. In my opinion , if there is no problem with the other colors , there would be no problem with the WB or other adjustments. I heard from my friends that , there is no problem like this with the red color in Canons . They really doesnt like the red performance of Nikons too.
The typical sensor arrangements are more sensitive to red than to other colors, and this means that it is much easier to blow out the red channel. The cameras now all have three-channel histograms, and if you look at them in the field, you'll see when you're blowing the red channel right when it happens. You probably wouldn't notice this by looking at the preview image, but the histogram will be accurate.
Shooting in raw will also help, as it provides more exposure latitude. Between shooting in raw and watching the histogram, I don't have much trouble with this.
As far as I know, the only cameras that don't have this problem to one degree or another are the ones with unusual sensors, such as the Sigmas that use the Foveon sensors, or some of the Fujis that use a different sensor pattern.
_____ Brian... a bicoastal Nikonian and Team Member
My gallery is online. Comments and critique welcomed any time!
Fri 18-Apr-14 10:49 AM | edited Fri 18-Apr-14 10:52 AM by audiophileman2002
I too had the same 'red' problems. I found out that the reason why was my Picture Control was set to Vivid which was saturating the red. I believe you have the same situation as your Picture Control is in Vivid. Try using Standard or Neutral even if the saturation is only +1. The 'red' of the Standard or Neutral is more in control. Furthermore, the 'red' problem will also NOT be there in RAW. Picture Control only affects JPEG.
Unless you have a compelling need to use the Vivid Picture Control in-camera, it's always better to apply things like Saturation, Contrast and Sharpening post-process. Your general objectives are to nail the exposure, framing and timing in-camera. Auto WB isn't that good, honestly, going all the way back to the D1. Better to look at the lighting situation, be aware when it changes and go to the nearest preset if you're time crunched, otherwise if you have the luxury and really want to nail it, set a custom WB.
>Dear Nikonian friends > >I've used D70S, D80,D90 and D7000 up to 2014 and now I am >using D7100 . According to my observations during years they >all have a bad red color performance . The red color of red >flowers can not be obtained with the camera . Besides >sometimes the red color is just like '' overexposed '' >and no details . What is the reason for that ? Is it avoidable >, is there a solution for this problem ? Or is it destiny of >all Nikons ? >( no problem with the other colors )
This is a common problem with all DSLRs.
Earlier this week I was shooting the local yearly tulip fields. To prevent the reds from being blown out, I was dialing in EV compensation from -0.3 to -1.0 depending on the lighting conditions. I can fix the exposure problems in post processing later. Using the separate RGB histograms was a must for this.
---------+---------+---------+---------+---------+ Joseph K Seattle, WA, USA
Digital sensors don't have the same spectral response as the human eye. This can be a particular problem in flower photography. I've noticed it most often for blue or purple flowerS. However, as others have noted, digital sensors usually saturate in the red channel first, do Amy strong refs may be problematic. Expose properly, and fix color casts in post-processing.
As others have mentioned, you are having a typical problem. There are several contributing factors.
The histogram and exposure for the camera weight the green channel more heavily than the red channel. That makes it easy to overexpose the red channel.
When you look at your image you generally are seeing an sRGB view because that's what the camera LCD and most monitors can display. That means even if the camera captures more data, it can be clipped.
Contrast and saturation add to clipping in the red channel. Increased contrast makes the bright areas even brighter. Saturation can also wash out any detail. The Vivid picture control adds both contrast and saturation so it will be much more likely to result in blowing out the red channel for a bright red flower or shirt in sunlight.
Switch to Standard picture control. If it continues to be a problem, you can use the neutral picture control. If you apply contrast, apply it to the luminence channel only (the light and dark channel) rather than to colors.
White balance can increase color in the red channel by making the image warmer. Check your white balance to make sure it is not causing excessive clipping. To get a quick read on the corrrect WB setting, you can use Live View and manually choose the WB that is closest to what you need. I find this approach works particularly well with pinks and purples.
As a last resort, you can use highlight protection. This helps with some images.