Interesting Accident
Mar 19, 2021 15:42:29 #
Last week I found a large flock of snow geese floating on a body of water in Central Washington State. As I was talking with another amazed visitor along the shoulder of the road the geese all took off. I quickly grabbed my Nikon D500 and fired off a couple volleys before they all settled back down. I did not have time to make any camera adjustments. Later I discovered the camera had been set on f/11 and ISO 160. My shutter speed was 1/2500 and the images were all very underexposed. However and surprisingly I was able to save them AND the depth of field was incredible. Nearly every bird in the frame is in decent focus. Dumb luck? Iso invariance? What do you think? Should I have been surprised these shots could be saved? The finished image was done in Adobe Camera Raw using only the "basic" panel. The lens was a Tamron 150x600 G2. First shot SOC. Second shot processed.
Mar 19, 2021 15:50:34 #
Mar 19, 2021 16:10:24 #
Mar 19, 2021 16:16:32 #
Mar 19, 2021 16:28:55 #
Mar 19, 2021 16:37:37 #
saxman71 wrote:
.../... Iso invariance? .../...
The D500 has an ISO invariant. You are within the range where it works best. (100~400 ISO)
Mar 19, 2021 16:37:49 #
Amazing, I would never have believed you could get this much out of the original. Shooting RAW saved your picture, I'm fairly sure jpg would never have done this good and would have had a lot of noise.
Mar 19, 2021 21:34:57 #
Mar 20, 2021 00:22:14 #
Jim-Pops wrote:
Amazing, I would never have believed you could get this much out of the original. Shooting RAW saved your picture, I'm fairly sure jpg would never have done this good and would have had a lot of noise.
Sure. I agree shooting RAW makes a big difference. Usually when I'm shooting wildlife (birds in particular) I shoot this lens wide open. As a result, I get the main subject in sharp focus and everything else out of focus, the amount of which depends on how far away things are from the main subject. Here, in this example, I accidently shot the birds on f/11. I never do that. I was very surprised that so many are in reasonably good focus after processing. So, was I able to achieve a useable photo (with f/11 and ISO 160) simply because I shot in RAW or are there other factors involved such as ISO invariance? Could this have been done with a camera that is not considered "ISO invariant"? Are there other possible factors I haven't considered?
Mar 20, 2021 00:29:46 #
saxman71 wrote:
Sure. I agree shooting RAW makes a big difference.... (show quote)
Twice already... Previous post
Proof is in the pudding. This was posted Dec 5, 2016 when I received my D500.
Mar 20, 2021 01:01:47 #
Rongnongno wrote:
Twice already... Previous post
Proof is in the pudding. This was posted Dec 5, 2016 when I received my D500.
Proof is in the pudding. This was posted Dec 5, 2016 when I received my D500.
It's not like I didn't see your post. I did. It's just that I felt further explanation was needed. Thanks for the link to 2016. I'll look harder at it tomorrow. I have noted some disagreement among members of UHH as to whether or not ISO invariance is even a real thing. I'll put you in the camp of the believers. I'll be a believer as well.
Mar 20, 2021 08:55:53 #
Mar 20, 2021 10:35:39 #
trinhqthuan
Loc: gaithersburg
saxman71 wrote:
Last week I found a large flock of snow geese floa... (show quote)
Very nice. Question: The focal length?. At f/11 we got very deep depth of field at a far focal plane. Comment: Your auto ISO maybe too low, or you did not set auto ISO, but shot with M mode.
Mar 20, 2021 11:03:50 #
trinhqthuan wrote:
Very nice. Question: The focal length?. At f/11 we got very deep depth of field at a far focal plane. Comment: Your auto ISO maybe too low, or you did not set auto ISO, but shot with M mode.
Yes. Good call. Focal length is probably a factor here. The snow geese were close so I was at 150mm. The ISO was set manually at 160 because I was shooting some landscapes previously and I forgot where I had set it. I use two cameras, switching back and forth between them, and sometimes it becomes confusing. It's not real hard to confuse me.
Mar 20, 2021 11:18:20 #
Outstanding Shot! The luckiest thing you did was have your camera on 1/2500 sec., and raw of course.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.