Realistic distance for shooting with a long fixed lens.
Apr 5, 2017 18:44:22 #
This is primarily directed to members that shoot with long fixed lenses.
Yesterday I was out shooting with the 7DII, 600 f4 plus 1.4TC.
(I have just posted a couple of shots under the post title of "Leucistic Sika Deer").
The shots were at approx. Half a mile. Sky overcast. Temperature approx. 12 Degrees Celcius.
I suspect I need to micro adjust this setup but I can't see that it would result in much better images.
My question is:- Is it realistic or not, to expect sharp images at this distance?
Thanks in anticipation.
Yesterday I was out shooting with the 7DII, 600 f4 plus 1.4TC.
(I have just posted a couple of shots under the post title of "Leucistic Sika Deer").
The shots were at approx. Half a mile. Sky overcast. Temperature approx. 12 Degrees Celcius.
I suspect I need to micro adjust this setup but I can't see that it would result in much better images.
My question is:- Is it realistic or not, to expect sharp images at this distance?
Thanks in anticipation.
Apr 5, 2017 18:47:58 #
Jolly Roger wrote:
This is primarily directed to members that shoot w... (show quote)
Probably only on a clear, cold day and even then I would not expect too much, that is just a tad too much distance!
Apr 5, 2017 18:50:32 #
Apr 5, 2017 18:52:12 #
I would say you have a couple of things working against you. First, and foremost, the distance. That is quite a small subject at that distance. Next, the TC can introduce additional optical issues. It not only multiplies your focal length by 1.4, it also magnifies any optical aberrations by 1.4, as well. I'm not familiar with your camera enough to know if it is an FX or DX format. However, once we get to the projected image size, the number of and size of each photosite on the sensor is going to be a part of the issue as well. I hope this answers some of your questions.
--Bob
--Bob
Jolly Roger wrote:
This is primarily directed to members that shoot w... (show quote)
Apr 5, 2017 19:40:32 #
Jolly - having shoot with both the 300 and 500 primes and both the 2x and 1.4x extenders, I looked at the deer images and think the issue is something other than micro adjustment or equipment. I don't see camera movement. I wonder if the was moisture on the lens or filter?
I wonder also about your AF focus method. The animals look stable so it doesn't seem like the animal changed position in single shot AF.
My summary opinion: these images should be much sharper given the equipment involved. You can find numerous examples of photographers using similar or the exact same configuration with results showing extremely sharp results.
I trust Canon's IS, but I trust a fast shutter speed and higher ISO even more. I also find continuous AF and back button focus to be a more responsive configuration when using an extender.
I wonder also about your AF focus method. The animals look stable so it doesn't seem like the animal changed position in single shot AF.
My summary opinion: these images should be much sharper given the equipment involved. You can find numerous examples of photographers using similar or the exact same configuration with results showing extremely sharp results.
I trust Canon's IS, but I trust a fast shutter speed and higher ISO even more. I also find continuous AF and back button focus to be a more responsive configuration when using an extender.
Apr 5, 2017 20:27:55 #
Jolly Roger wrote:
This is primarily directed to members that shoot w... (show quote)
Half a mile and overcast. Way to far away for a subject of that size to really show details. Overcast, less contrast in the light and it indicates moisture in the air so you have a half mile of moisture/haze in the mix. Unless the air was flat calm you also have that haze moving in layers and air currents thus distorting the light passing through it. I checked your picture and believe you have done about as well as could be expected in the circumstances.
Apr 5, 2017 20:34:40 #
Rules of Thumb - Finding Your Lens' 'Sweet Spot
https://www.bhphotovideo.com/explora/content/rules-thumb-finding-your-lens-sweet-spot
https://www.bhphotovideo.com/explora/content/rules-thumb-finding-your-lens-sweet-spot
Apr 5, 2017 21:22:06 #
You might give a shout out to MtShooter , a member here who could give you great input with this problem.
Apr 6, 2017 04:07:11 #
whether you shoot at medium or long range, you need to learn how to get the most from your camera at those ranges. practice. whether you use a 1.4 or 2.0 tc is up to you. quality prime and tc's are best used. auto vs manual focus is a toss up. if however you decide it's too far you "can" pass on the shot.
Apr 6, 2017 06:26:33 #
Temperature variations cause varying air densities, and so different indices of refraction--like shooting in a bad mirror. This is especially an issue on sunny days, as the sun heats the ground and you have convection currents occurring.
Apr 6, 2017 06:32:07 #
Jolly Roger wrote:
This is primarily directed to members that shoot w... (show quote)
Did you shoot hand held, if so shutter speed 1/400th is slow for this focal length. Did you use a tripod?
Apr 6, 2017 06:40:06 #
Jolly Roger wrote:
This is primarily directed to members that shoot w... (show quote)
How about 250,000 miles? Members have posted sharp images of the moon.
Apr 6, 2017 06:42:08 #
Jolly Roger wrote:
This is primarily directed to members that shoot w... (show quote)
Please look at the photos of Charles Gazer here where he usually post his settings. I feel he proves with his work that shutter speed trumps ISO.
https://www.facebook.com/charles.glatzer
Apr 6, 2017 07:21:23 #
speters wrote:
Probably only on a clear, cold day and even then I would not expect too much, that is just a tad too much distance!
Thanks for your input speters.
Apr 6, 2017 07:26:39 #
Then, again. you could shoot the moon. That's some 238,000 miles away. With the proper filters the sun is 93 million miles. And the stars are light years away.
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