Reach vs. Resolution
Oct 11, 2013 16:57:45 #
I have a 7D and Canon 100-400, no tc. I like it. I was shooting a vesper sparrow last week and I was a ways away. The photo as taken was acceptably sharp and resolved, but I needed to crop in. After cropping, I noticed a loss of definition in the subject. Light wasn't a problem. I was shooting ISA 400 for faster shutter speeds. What occurred to me, instead of getting a longer telephoto or a tc was getting a full frame camera with higher resolution. Does that make sense? I can't quite reason through it yet. Thanks.
Oct 11, 2013 17:04:03 #
That will happen even with a camera with the highest resolution, like the D800, which I have. Sparrows are small, and you were at a distance. You can only crop so much. How many mp does the 7D have? I will say that I was amazed at how much I could crop with the D7000 shooting at 300mm. I'm on a guest computer, otherwise I would post a sample photo.
Oct 11, 2013 17:20:04 #
aerides wrote:
I have a 7D and Canon 100-400, no tc. I like it. ... (show quote)
Aerides, a FF will not cure your problem. At best you will wind up with the same thing. Unless, of course you want a FF, then get it.
I would get the 1.4x. You will probably lose auto focus, so you will need to tape the pins to regain it. You will lose VERY little resolution. I have no experience with a 2x. That I'm sure will work as well, but I don't know if you can tape the pins on the 2x.
If you get a 1.4x, get the mkll, as there is no benefit to having the lll with your current equipment.
Good luck. SS
Oct 11, 2013 17:23:12 #
18MP. Not that much difference between that and the 5D. Now if we were talking about the Nikon D800.. But I take your point. Thanks.
Oct 11, 2013 18:27:18 #
aerides wrote:
18MP. Not that much difference between that and the 5D. Now if we were talking about the Nikon D800.. But I take your point. Thanks.
It's very similar to the D7000. The problem is probably the size of you subject and the distance. SwampGator shoots Canon. He shoots primarily with a 300mm f4 (not the expensive f2.8) and a 1.4 teleconverter for length. The sharper lens will give you better resolution, too, allowing for better cropping. He does tend to shoot things bigger than sparrows, though. Teleconverters do not work as well on zooms. Could you post your original photo and your cropped photo?
Oct 11, 2013 19:09:05 #
aerides wrote:
I have a 7D and Canon 100-400, no tc. I like it. ... (show quote)
Higher resolution like a D800 will help considerably when cropping, but then a longer telephoto or a converter will help. The 1.4 is you least expensive option but you may loose auto focus and the high end.
Unless you have deep pockets, sometimes your best option is just to grin and bare it.
Oct 11, 2013 19:13:14 #
joer wrote:
Higher resolution like a D800 will help considerably when cropping, but then a longer telephoto or a converter will help. The 1.4 is you least expensive option but you may loose auto focus and the high end.
Unless you have deep pockets, sometimes your best option is just to grin and bare it.
Unless you have deep pockets, sometimes your best option is just to grin and bare it.
I have a friend who shoots the 100-400L lens and gets tremendous photos with it, so I don't think that the lens is the problem, really.
Oct 11, 2013 21:43:30 #
joer wrote:
Unless you have deep pockets, sometimes your best option is just to grin and bare it.
Yep, I get it. It is what it is. Distant, small subject. But I can see two different things. I can see that the photo could have been sharper, my bad. But I can also see that even if it had been tack sharp the photo would start to pixelate (?) before I got it to a pleasing size. That's why I though higher resolution would help. But in the real world, after this helpful discussion, I see it'd not make much difference. But here are the pics anyway, as requested.
Oct 11, 2013 21:51:29 #
SharpShooter wrote:
If you get a 1.4x, get the mkll, as there is no benefit to having the lll with your current equipment.
Good luck. SS
Good luck. SS
Would you be a little more specific regarding this comment please? I'm prepared to accept it, I just don't understand the criteria you're using. Thanks!
Oct 12, 2013 03:41:15 #
Excuse me, aerides, but Goodness, Gracious, Great balls afire....I think you were expecting the impossible out of your equipment. That was a small, small image of the sparrow to start out with and you really got an acceptable image from your crop. You can't expect tack sharp images from super crops, and eventually you'll end up with pixallation, even with D800's. You really have a nice camera and lens. Best way to get a better photo of a common bird? Get closer.
Oct 12, 2013 06:01:08 #
aerides, Here is an article from Canon that you may find useful, which explains what you can expect from the Canon 1.4 and 2X extenders, please read both pages. http://cpn.canon-europe.com/content/education/infobank/lenses/extenders.do
I have the 7D and 70-200 f2.8L IS and the 2X iii will autofocus. I have the 400f5.6L and the 1.4 iii will not autofocus. I have never tried taping the pins, but except what Canon manufacturers. I can share results at this thread on UHH, using the combinations described above. http://www.uglyhedgehog.com/t-154160-1.html
I have the 7D and 70-200 f2.8L IS and the 2X iii will autofocus. I have the 400f5.6L and the 1.4 iii will not autofocus. I have never tried taping the pins, but except what Canon manufacturers. I can share results at this thread on UHH, using the combinations described above. http://www.uglyhedgehog.com/t-154160-1.html
aerides wrote:
I have a 7D and Canon 100-400, no tc. I like it. ... (show quote)
Oct 12, 2013 07:53:01 #
Oct 12, 2013 07:53:57 #
Wombat
Loc: Michigan
Nothing works better than getting closer, every foot closer helps in a big way.........
Oct 12, 2013 08:21:30 #
This is a typical question. You give no information and expect an answer. How far away was the bird? Was it flying or standing still?
Why ISO 400?. What time of day, dark or sunshine? If you can not figure this out, you are not of much of a photographer. The problem with most new photographers is they buy a new camera, get the largest super zoom they can afford, play zoom and expect all photos to turn out perfect. You have not learned or understood the basics of photography, and until you do, you will never be a photographer.
Why ISO 400?. What time of day, dark or sunshine? If you can not figure this out, you are not of much of a photographer. The problem with most new photographers is they buy a new camera, get the largest super zoom they can afford, play zoom and expect all photos to turn out perfect. You have not learned or understood the basics of photography, and until you do, you will never be a photographer.
Oct 12, 2013 08:31:14 #
cthahn wrote:
This is a typical question. You give no informatio... (show quote)
Got news for you. I'll be a photographer before you're a human being.
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