Image Help!!
Jan 31, 2021 13:25:27 #
I went to a local lake this morning and spotted an eagle. I must've take 50 shots with a Sigma 150-600 C on a Canon 7d2. The lens was barrel mounted on a tripod. Every shot is soft. This one is typical.... Not cropped, saved SOOC. DPP shows the focus box smack on his head, maybe a little low, but definitely includes the eyes..... I DID forget to turn off IS on the lens. Could that have contributed to the softness. The sun, which I had little control over is to the left. Any thoughts would be appreciated.
Jan 31, 2021 13:37:20 #
jpgto
Loc: North East Tennessee
I have viewed the picture in DL! Once in DL I closed in on the eagle. The eagle was clear, detailed and the eye was very prominent. Personally I feel the camera and you did a great job. Coming out of DL mode and back to the post on my laptop I do see a 'haze' if that is what you're referring to? Again, in the DL, it is completely different from my perspective. Great catch.
Jan 31, 2021 13:38:30 #
47greyfox wrote:
I went to a local lake this morning and spotted an... (show quote)
What was your distance ?
Jan 31, 2021 13:46:00 #
Manglesphoto wrote:
What was your distance ?
I'd only be guessing..... at least 100 yds? I was constrained by a conservation fence.
Jan 31, 2021 13:55:40 #
47greyfox wrote:
I'd only be guessing..... at least 100 yds?
Thats getting out there
I use the Sigma in the sports model and my image of eagles at 100yds + (measured with a Vortex range
finder) have to be cropped so much they look like crap!!!
Jan 31, 2021 14:02:11 #
47greyfox wrote:
I went to a local lake this morning and spotted an... (show quote)
The light isn't optimal for this shot. You might have improved it a tad if you'd have increased your ISO from 125 to 640, used Aperture priority, and used an EC of +1. The light is from above and slightly behind the subject causing the front of the eagle to be in shadow. This caused your camera to expose for this and the front of the bird is underexposed.
Also, 100 yards is pushing it, especially for a zoom lens that isn't exactly the fastest lens around.
Jan 31, 2021 14:27:56 #
Seems that I had read that if you're using a tripod, to NOT use Image Stabilization, as it continuously tries to stabilize an already 'Stable' camera. - (Please correct me if I'm wrong)
Jan 31, 2021 14:58:53 #
47greyfox wrote:
A little cropping and post processing produces a decent image at that range.I went to a local lake this morning and spotted an... (show quote)
Jan 31, 2021 15:07:13 #
Do you have DPPv4 to export a JPEG that retains the EOS data so we can see the AF location? If yes, please attached and store the converted result.
Jan 31, 2021 15:21:15 #
jeep_daddy wrote:
The light isn't optimal for this shot. You might have improved it a tad if you'd have increased your ISO from 125 to 640, used Aperture priority, and used an EC of +1. The light is from above and slightly behind the subject causing the front of the eagle to be in shadow. This caused your camera to expose for this and the front of the bird is underexposed.
Also, 100 yards is pushing it, especially for a zoom lens that isn't exactly the fastest lens around.
Also, 100 yards is pushing it, especially for a zoom lens that isn't exactly the fastest lens around.
I use spot metering when the subject may appear as a silhouette. Works very well then you underexpose a stop to keep the backround from getting out of control. Steve at backcountry taught me that.
Jan 31, 2021 15:24:58 #
CHG_CANON wrote:
Do you have DPPv4 to export a JPEG that retains the EOS data so we can see the AF location? If yes, please attached and store the converted result.
That would be this, Paul.
Jan 31, 2021 15:32:59 #
47greyfox wrote:
I'd only be guessing..... at least 100 yds? I was constrained by a conservation fence.
I’m not guessing (much) saying 400ft, based on what appears to be a 20ft width of field sooc and 600mm FL for APSC ... a combo where the subject distance is 20X the width of the FoV.
IOW, if the FoV is actually 25ft, the distance is 500ft. Better estimates of width of subject field are welcomed.
Jan 31, 2021 15:45:41 #
pshane wrote:
Seems that I had read that if you're using a tripod, to NOT use Image Stabilization, as it continuously tries to stabilize an already 'Stable' camera. - (Please correct me if I'm wrong)
Most newish lenses will park their IS whenever no motion is detected.
But, yes, you certainly did read that somewhere, and it does still apply to not-so-newish lenses still in use.
The user manual for the lens should settle the question, although on some older lenses you can easily see the IS acting very nervous via the viewfinder.
Jan 31, 2021 15:49:05 #
User ID wrote:
Most newish lenses will park their IS whenever no motion is detected.
But, yes, you certainly did read that somewhere, and it does still apply to not-so-newish lenses still in use.
The user manual for the lens should settle that question.
But, yes, you certainly did read that somewhere, and it does still apply to not-so-newish lenses still in use.
The user manual for the lens should settle that question.
Unfortunately, it does matter with this lens. When I remembered that I forgot to turn OS off, I checked the online manual. OF COURSE, it says turn it "off."
Jan 31, 2021 15:53:20 #
47greyfox wrote:
That would be this, Paul.
Thank you! So, we see a single AF point in AI Servo on the bird's head. The lens is 'wide open' at the 600mm max and f/6.3 and ISO-125 with a cropped sensor EOS 7DII.
All things considered, this is probably the best it can be. You might step down that lens to f/8 or any 1/3-stop out to f/11 as you have room in the ISO in this situation. See if the lens can deliver a bit more sharpness. I'd leave the IS active. Modern 21st century lenses don't have problems with the stabilization being left active.
You're best opportunity, beyond testing the lens stepped down at bit, is to get closer. Here I'm assuming you shooting in a burst and this is the best of the lot with the AI Servo active via BFF or the shutter release.
The image reports there's no EC in Aperture Priority. While shooting in RAW, you might push the EC up from +1/3 to maybe +1 to get more of the shadows. Just don't blow the whites of the feathers. Bob's processing shows the potential even from this current version.
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