Home · Register · Join Upload & Sell

Moderated by: Fred Miranda
Username  

  New fredmiranda.com Mobile Site
  New Feature: SMS Notification alert
  New Feature: Buy & Sell Watchlist
  

FM Forums | Nikon Forum | Join Upload & Sell

1       2       3              6      
7
       end
  

Archive 2014 · D750 class action

  
 
Andre Labonte
Offline
• • • • • •
Upload & Sell: Off
p.7 #1 · p.7 #1 · D750 class action


Vilk wrote:
i drop by from time to time, always amazed how people insist on referring to this as "flare" - and on making dozens of intelligent, experienced photographers look like idiots...

granted, some of the confusion may be due to less experienced people posting flare pictures as their "examples" - but the reflection issue is real, i saw it with my own eyes and reproduced it easily. it was not flare

nikon is investigating the reports; they will come up with a solution and make it good. having requested nikon support more than once i have no doubt here. i agree that at
...Show more


*************************

The only images I have seen are flare images with a shadow across them. I have no seen any images that show a light leak. If you have an example, please do share.

Thanks for the information. Either way, it's a minor issue.





Dec 31, 2014 at 06:59 AM
Chris Dees
Offline
• • • • •
Upload & Sell: On
p.7 #2 · p.7 #2 · D750 class action


Andre Labonte wrote:
*************************

The only images I have seen are flare images with a shadow across them. I have no seen any images that show a light leak. If you have an example, please do share.

Thanks for the information. Either way, it's a minor issue.



As I read it it's neither flare nor light leak; it's internal reflection within the mirror box happening in a few exceptional cases
I think there are several websites that did a thorough investigation on this.



Dec 31, 2014 at 08:26 AM
patriot
Offline
• •
Upload & Sell: Off
p.7 #3 · p.7 #3 · D750 class action


Vilk wrote:
i drop by from time to time, always amazed how people insist on referring to this as "flare" - and on making dozens of intelligent, experienced photographers look like idiots...

granted, some of the confusion may be due to less experienced people posting flare pictures as their "examples" - but the reflection issue is real, i saw it with my own eyes and reproduced it easily. it was not flare

nikon is investigating the reports; they will come up with a solution and make it good. having requested nikon support more than once i have no doubt here. i agree that at
...Show more

Most seem to refer to it as a shadow, or blockage of the flare, that appears as a band across the top if the image. I can induce this with my 750 using 28, 50, and 85mm f1.8 g primes, but not with my 24-120. The conditions required are a precise angle of light.

Experimenting, it seems that to get the shadow, you need to produce an uncontrolled flare. I used a large tree trunk, which took up about 1/3rd of the frame, vertically. I focused on a specific feature in the the bark.

What I found interesting is that when the tree trunk was exposed properly, the target area in focus, the flare was controlled, and no shadow. However, when the tree trunk was blown out in the flare, the shadow was more likely to be present, and the target area appeared to not be in focus, or lacked detail. I found that spot metering yielded better results.

To my non-artistic, non-professional, non-techical mind, the shadow seems to appear in images that are poorly exposed, with uncontrolled flare, and the AF missed. In other words, images that would simply be discarded in real life as user error, except for the curiosity of the shadow in the flare.

I suspect that some, if not a fair amount, of this is caused by lack of technique when shooting back lit subjects, and the light source at a specific angle. From what I can gather reading about this kind of shooting, it takes more planning, and has a higher failure rate, especially if you want to use the all too easily produced flare for artistic effect.

For example, most of the "how to" manuals I have read state that auto AF is easily thrown off in these conditions, and recommend using manual AF. When I look at my "experiments", one common feature is the target being OOF. The metering is also done of the AF point, so I wonder what the camera default to if the AF misses.

Many of the images we have been shown of the shadow also seem to have the subject OOF. I have asked a few posters on other site questions on this, and I have several have said they had no specific target, so don't know of the AF was where that intended. That to me is just shooting snapshots, not planning; not considering the bright overhead sunlight, and how that will effect what the cameras AF locks on to, and meters off of.

Using spot metering is also commonly recommended for this kind of photography. I also found that this worked best in my experiment. I have asked that question as well to some posters, and have found that they either used matrix, or even more telling, in some answers said they only ever use matrix.

I'm not saying there is no issue here that Nikon cannot make better. Perhaps the D750 is more probe to uncontrolled flare due to light bouncing around more inside, at specific angles, than other DSLR's.

But we also may have a lot of user error, as many people read these posts and then go out shooting backlit subjects with little knowledge or experience in that kind of photography. Like I did.




Dec 31, 2014 at 09:26 AM
Andre Labonte
Offline
• • • • • •
Upload & Sell: Off
p.7 #4 · p.7 #4 · D750 class action


Wow, this is awesome, people can't even agree on the exact nature of the issue and some people want to start a class action law suit. That's a class act!


Dec 31, 2014 at 09:30 AM
Vilk
Offline
• •
Upload & Sell: Off
p.7 #5 · p.7 #5 · D750 class action


yaaaaaaa. 'xpecially peeps who never experienced it and yet keep pontificating about it

no worry, nikon support has been a "class act" every single time i needed them--a couple of weeks and the 750 will be the dream cam it was designed to be... whatever you choose to call the specular reflection getting imaged directly on the sensor



Jan 01, 2015 at 04:20 AM
1       2       3              6      
7
       end




FM Forums | Nikon Forum | Join Upload & Sell

1       2       3              6      
7
       end
    
 

You are not logged in. Login or Register

Username       Or Reset password



This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.