Lens fine tune
Nov 17, 2014 15:11:30 #
oldtool2 wrote:
This lens is large making it a little hard to hand... (show quote)
In my excitement, I didn't adjust settings for camera. I used several different apertures from f8-f16. My shutter speed was way too slow for the action. I enjoy shooting birds in flight and don't have high expectations for a high count of quality photos, always hoping for at least a couple good ones. But this was disappointing due to the subject and the fact that I should have known better. As soon as I downloaded the photos I realized I didn't have a fast enough shutter speed. Won't make that mistake again. With the overcast skies I could have turned up my ISO also. Thanks for your response and help.
Nov 18, 2014 04:05:39 #
manderson wrote:
I was looking at some photos that I just took toda... (show quote)
I think others answered it, that it was probably due to the wind, but I am surprised that as far as I read no one asked you what shutter speed you were using (and therefore what ISO).
Personally I have never used a lens that long. But I can imagine some problems.
Nov 18, 2014 04:49:24 #
manderson wrote:
I was looking at some photos that I just took toda... (show quote)
Post a sample. This way we can evaluate the source of blur. It could be focus, it could be movement, it could be both.
In any case, if you are tracking birds in flight with a lens that long, you should be using 1/2000, and F8, only going to 6.3 if absolutely necessary. Also, with that lens, avoid going all the way to 600 when handholding. It is a little sharper at 500/550 and it will be slightly less prone to camera motion blur.
Sample images will help.
Nov 18, 2014 07:08:04 #
So, to make sure I understand this correctly, to fine tune a lens, set the chart up on a wall and shoot straight at it?
Somewhere I read where you set the chart up on a 45 degree slant. Just want to be sure, so any help would be most appreciated. Thanks!
Somewhere I read where you set the chart up on a 45 degree slant. Just want to be sure, so any help would be most appreciated. Thanks!
Nov 18, 2014 07:14:39 #
juicesqueezer wrote:
So, to make sure I understand this correctly, to fine tune a lens, set the chart up on a wall and shoot straight at it?
Somewhere I read where you set the chart up on a 45 degree slant. Just want to be sure, so any help would be most appreciated. Thanks!
Somewhere I read where you set the chart up on a 45 degree slant. Just want to be sure, so any help would be most appreciated. Thanks!
a 45 degree slant would be used to check for front/back focus.... to check focus shoot straight at the chart.
Nov 18, 2014 12:45:49 #
manderson wrote:
In my excitement, I didn't adjust settings for cam... (show quote)
Your welcome. I think we have all been there and done that. I have learned my lesson but........
I am not familiar with your camera so this may not help. Most Canon DSLR's have 3 custom settings, c1, c2 and c3. I have these set so I can quickly switch to say c1 for BIF on a sunny day. This way I don't have to play with individual settings. When I happen across a situation like you did I only have to turn the mode dial to there and start shooting. All 3 are set slightly different. This has helped me at times get a shot I might have missed otherwise.
Have fun, and good luck.
Jim D
Nov 18, 2014 12:55:46 #
Gene51 wrote:
Post a sample. This way we can evaluate the source of blur. It could be focus, it could be movement, it could be both.
In any case, if you are tracking birds in flight with a lens that long, you should be using 1/2000, and F8, only going to 6.3 if absolutely necessary. Also, with that lens, avoid going all the way to 600 when handholding. It is a little sharper at 500/550 and it will be slightly less prone to camera motion blur.
Sample images will help.
In any case, if you are tracking birds in flight with a lens that long, you should be using 1/2000, and F8, only going to 6.3 if absolutely necessary. Also, with that lens, avoid going all the way to 600 when handholding. It is a little sharper at 500/550 and it will be slightly less prone to camera motion blur.
Sample images will help.
No need to post a photo and embarass myself. I was using too slow a SS and too low ISO. Wind was a huge issue and of course trying to hand hold the lens. Distance was quite long and I was at the 600 mm end of the lens.
Nov 18, 2014 12:59:40 #
juicesqueezer wrote:
So, to make sure I understand this correctly, to fine tune a lens, set the chart up on a wall and shoot straight at it?
Somewhere I read where you set the chart up on a 45 degree slant. Just want to be sure, so any help would be most appreciated. Thanks!
Somewhere I read where you set the chart up on a 45 degree slant. Just want to be sure, so any help would be most appreciated. Thanks!
I just did a test with my Tamron and used a book standing up, metal ruler at a 45 degree angle down beside the book. Set the camera in Aperture and set it at second widest opening, on a tripod and used cable release. As I looked at the photos it seems that the lens is tuned perfectly. So, next time I get the opportunity to get an incredible photo, I need to take 2 seconds and set my camera properly. Of course, I can't do anything about the wind or get closer to the subject in this case.
Nov 18, 2014 12:59:57 #
manderson wrote:
No need to post a photo and embarass myself. I was using too slow a SS and too low ISO. Wind was a huge issue and of course trying to hand hold the lens. Distance was quite long and I was at the 600 mm end of the lens.
No embarrassment..... if I post images on here, no one can do worse ;)
Nov 18, 2014 13:00:23 #
manderson wrote:
<snip>facing directly into the wind (20+ mph), 25 degrees overlooking a lake. <snip>
Conditions. With the cold, wind and the lake, you could have been getting condensation on the lens causing blur, depending on how long you were out there.
Nov 18, 2014 13:02:13 #
Nov 18, 2014 13:03:19 #
dsmeltz wrote:
Conditions. With the cold, wind and the lake, you could have been getting condensation on the lens causing blur, depending on how long you were out there.
No, it was just me! But I will remember those excuses in the future.
Nov 18, 2014 13:38:47 #
In addition to all the above expert advice I can only add this. I shoot a lot from the truck because moving on foot is not my best thing any more. The wind, or dog, will cause movement of the truck as well as having it running. Just another point. :) the buzzards up at the dam in MD love windshield wipers as well. :(
Nov 18, 2014 17:23:02 #
Dngallagher wrote:
a 45 degree slant would be used to check for front/back focus.... to check focus shoot straight at the chart.
Thank you!
Nov 18, 2014 21:54:25 #
manderson wrote:
No need to post a photo and embarass myself. I was using too slow a SS and too low ISO. Wind was a huge issue and of course trying to hand hold the lens. Distance was quite long and I was at the 600 mm end of the lens.
Ok. That makes sense and you are already aware of what you need to make it work for you in the future.
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