Guest rubidium Posted July 2, 2006 Share #1 Posted July 2, 2006 Advertisement (gone after registration) R9+DMR, 280/4.0 Apo-Telyt-R, f4.0 @ 1/30 sec, using tripod. Link to post Share on other sites More sharing options...
Advertisement Posted July 2, 2006 Posted July 2, 2006 Hi Guest rubidium, Take a look here Squirrel. I'm sure you'll find what you were looking for!
leicamann Posted July 2, 2006 Share #2 Posted July 2, 2006 hmm..he moved or you moved..a shade of "motion blur" in this shot..you have a Digital system.. shoot and if not sure..re-shoot..it takes some practice to recognize in the LCD preview if the shot is sharp or damaged by "motion blur..this is the difficulty with telephoto lenses..so its important to work out the "variables"....starting with a very steady camera and lens setup.....film or digital. This is an extremely sharp lens..so with practice Thanks for sharing Cheers, JRM Link to post Share on other sites More sharing options...
Guest rubidium Posted July 2, 2006 Share #3 Posted July 2, 2006 Indeed, he was moving a lot. Just when I'd think I had him steady, he'd move another few inches. This was the shot out of about 10 that I was least disappointed in - in terms of focus. This is my first real experience with lenses longer than 180mm, and as you rightfully point out, "practice, practice, practice" needs to be my mantra. I'm also thinking that the universal focusing screen is less supportive here. For these shots, taken about an hour before sunset, I relied on on the microprism annulus surrounding the split prism of the universal screen. Perhaps I ought to look into getting a uniform ground glass screen. Link to post Share on other sites More sharing options...
robert_parker Posted July 2, 2006 Share #4 Posted July 2, 2006 Might be worth checking the seating of the focus screen too - a fraction off and you will get an unsharp result - though I think he moved on this one, too !! Link to post Share on other sites More sharing options...
ddh Posted July 3, 2006 Share #5 Posted July 3, 2006 Nice image. Sorry, but I am not convinced that it moved; James, did you do any processing of the image or did you just save it to jpg. Was there any sharpening of the image, wether in camera or in computer. I downloaded the image and applied a little Unsharp mask and it seems quite sharp. The refleciton in the eye is quite remarquable. If You wish, I can post the result. (Some people are against others manipulating their image) Then again, I may be blind. Cheers Link to post Share on other sites More sharing options...
mitchell Posted July 3, 2006 Share #6 Posted July 3, 2006 Looking at the railing, I think the focus is a little in front of the squirrel. I've been struggling with focus too. I'm getting a Brightscreen, and magnifier which I hope will help. Best, Mitchell Link to post Share on other sites More sharing options...
Guest rubidium Posted July 3, 2006 Share #7 Posted July 3, 2006 Advertisement (gone after registration) Actually, I spent a bit of time today shooting a few static objects that had some relief to them. Using a tripod, I very carefully focused on very specific places, yet noticed that the actual points of focus were consistently forward of the targeted points of focus - by about 3 mm. (I suppose a finely-graduated ruler would have been better for this task, but alas, I couldn't find one around the house. Suspecting the focusing screen not fully seated, as suggested here by Robert, I removed it and reseated it. Going back to the original test, focus has indeed improved. But I would like to get a finely-graduated ruler and shoot it slightly slanted along it's axis and check a bit more carefully. By the way, what is the proper - and safe - way to be sure a focusing is fully seated? All I did was remove it and replace it according to instructions, and hope for the best. Jim Link to post Share on other sites More sharing options...
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