compare 3 shots
Mar 28, 2019 14:30:34 #
bleirer wrote:
So I tried the experiment again, based on the feed... (show quote)
It would seem the extended zoom is just as good as the 300 cropped. Now, you should consider real-life applications. Setting the tripod, focusing and 2-second delay is fine for static subjects, but not moving subjects. With the EVF, can you track and focus on a subject? Is the extended 600mm manual-focus only or will continuous AF let you track a moving subject keeping the subject in focus, even reasonably? The 75-300 is not known for the AF speed, but is it a better tool to retain AF, possibly even continuous AF on a moving subject? Dogs at play or even cars or bicyclists riding by can be convenient subjects to test / practice with AF tracking.
Mar 28, 2019 15:27:11 #
Yes, the AF and all the tracking seems to work the same with the extender, since it does have the contacts to pass the signal from the lens to the EF adapter on the camera. It does seem to lag a bit. I tried to buy a canon 2x or 1.4 for this lens, but it is not on the list of supported lens' and the canon tech person said it wouldn't work. He said no canon extenders would work with this combination, so I might explore a better 3rd party extender, if there are recommendations, or maybe just limp along until a Canon Tele is gift wrapped for me.
Mar 28, 2019 15:35:07 #
bleirer wrote:
Yes, the AF and all the tracking seems to work the... (show quote)
One of our more prolific and astute uhh members, imagemeister, swears by Tamron TCs. You might PM him and ask him for his suggestion for this particular lens. He experiments a lot with different equipment and seems to know a lot about different combinations, not that other members don't. I'd consult him.
Mar 28, 2019 16:04:04 #
bleirer wrote:
Yes, the AF and all the tracking seems to work the... (show quote)
In the real world, when that cute baby bear appears, you may not have time to do much more than grab your camera and squeeze of a few quick shots. So if traveling where such wildlife interactions are possible, keep the longer zoom on and be prepared to crop later if need be. (Landscape doesn't move much, so you will have time to change to your shorter zoom if need be.) I wouldn't get too hung up about pixel peeping for those unexpected encounters. You are better off grabbing the best shot you can get with what you have at the ready. You may never have that opportunity again. A technically "imperfect" shot in that situation is still better than not getting it at all.
Mar 28, 2019 16:30:30 #
Mar 28, 2019 16:37:22 #
bleirer wrote:
Yes, the AF and all the tracking seems to work the... (show quote)
The Canon extenders literally extend into the compatible Canon L-series lenses, a subset of Canon's lenses. For incompatible EF lenses, there's not a space in the back of the candidate lens allowing room for the extender to be physically connected.
Mar 28, 2019 17:57:57 #
Remington wrote:
focal lengths with each?
If the question was for me, I wasn't trying to have all at the same focal length, but trying to max out each lens capability so I could crop less and getter better image quality. So the 24-105 was shot at 105 and cropped, the 70-300 was shot at 300 and cropped, and the extender was 300 x 2, so 600.
Mar 28, 2019 18:48:14 #
The last thing I tried, since I was trying stuff, was the super-resolution method described here: http://photoncollective.com/enhance-practical-superresolution-in-adobe-photoshop
I used 5 handheld shots with the 24-105. The processing took forever, and of course the subject had to be still. I'd say it falls somewhere in the middle. I guess I should try it with the 75-300 lens next.
I used 5 handheld shots with the 24-105. The processing took forever, and of course the subject had to be still. I'd say it falls somewhere in the middle. I guess I should try it with the 75-300 lens next.
Mar 28, 2019 23:18:56 #
aubreybogle
Loc: Albuquerque, NM
I appreciate your perserverence in addressing your issue. Eventually you will answer your question.
Mar 29, 2019 06:19:57 #
aubreybogle wrote:
I appreciate your perserverence in addressing your issue. Eventually you will answer your question.
If nothing else I'll know the boundaries of my gear and leave that wolf at the edge of the copse of trees.to someone with a $12k super-telephoto. Lens rental?
Mar 29, 2019 13:12:14 #
bleirer wrote:
If nothing else I'll know the boundaries of my gear and leave that wolf at the edge of the copse of trees.to someone with a $12k super-telephoto. Lens rental?
Well, the beauty of it is that if you're not doing it for money, you only have to please yourself. I've got some shots I'm pretty proud of that I wouldn't let anyone else see. I let people see some pretty bad stuff as it is but only for demonstration purposes, not to be competitive. They make me happy and that's all I'm concerned with. We each have to have clear vision on what to settle for and at my age it's all about keeping me moving anyway.
Mar 29, 2019 13:40:46 #
This will be my last foray down this particular rabbit hole, but just to satisfy my own curiosity I applied the super-resolution method using the 75-300 and then using the 2x doubler. It was raining, so take that into account.
Mar 29, 2019 15:02:42 #
bleirer wrote:
This will be my last foray down this particular rabbit hole, but just to satisfy my own curiosity I applied the super-resolution method using the 75-300 and then using the 2x doubler. It was raining, so take that into account.
They both seem doable from here with a noticeable difference in the brightness level, the top one being a tad better and the bottom one being fixable.
Mar 29, 2019 15:13:04 #
aubreybogle
Loc: Albuquerque, NM
gessman wrote:
They both seem doable from here with a noticeable difference in the brightness level, the top one being a tad better and the bottom one being fixable.
Agree, also the top one appears to me just a tad sharper. Adjusting the exposure and contrast in the bottom photo might improve its apparent sharpness.
Mar 29, 2019 18:01:46 #
`
That's not rational. The mirror
in an SLR is not in the imaging
path when recording.
.
Glenn Harve wrote:
Interesting, and informative.
Mirrorless seems to hold a clear
advantage with extenders.
Interesting, and informative.
Mirrorless seems to hold a clear
advantage with extenders.
That's not rational. The mirror
in an SLR is not in the imaging
path when recording.
.
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