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  1. Galleries
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  4. » Panorpa sp.

 
Panorpa sp....

Volti del micromondo

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Panorpa sp. sent on September 22, 2013 (7:45) by Nicola Dal Zotto. 7 comments, 1431 views. [retina]

, 1/160 f/4.0, ISO 100, tripod.

Nuova foto del mio progetto "I volti del micromondo" eseguita su materiale entomologico. Molte altre foto le potete vedere sul mio sito personale: www.fotodalzotto.it/fdz3/progetti/volti-del-micromondo



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avatarmoderator
sent on September 23, 2013 (15:17) | This comment has been automatically translated (show/hide original)

The pleasant Cormie, composition and detail. The question arises: why did you decide to keep the aperture open (f.4) instead of closing it, for example to F.13, performing less shots in merger and weigh less hardware?
Post the next time a version 1200z800pixel and weighs close to 400 kbytes for the HR version 2400x1600pixel enough.
Hello, laurel

avatarsenior
sent on September 23, 2013 (18:13) | This comment has been automatically translated (show/hide original)

Thanks for the tips on the size, I apologize. To close the aperture the more you lose detail according to data presented by Canon for the same lens. A 2.8 would be the best, but I did not notice much difference with f4 and so I prefer to reduce the clicks needed, above f4 5X starts to lose a little detail as you can push a little further down magnification. Obviously f13 is good, but since I had the opportunity I decided to try to get the most that I could from the shot :)

avatarmoderator
sent on September 23, 2013 (18:37) | This comment has been automatically translated (show/hide original)

When you have time try to turn around the link where the canon says this because it seems like generic warning using rr pushed. The diffraction optics and rises depending on which is mounted relfex but usually with a view dedicated professional and super extreme as the MP-65 should work with peace of mind at least until F.13-f-16 with prim. 1:1. Try a test run so you can be confident of what you think will be the acceptable limit using the optical with the ff.
(Imho).
Juza had tested with a canon 7d and indicated this coupled with a diaphragm limit f.7, 1 since, according to him, f.8 diffraction was pronounced.
www.juzaphoto.com/article.php?l=it&article=58
hello, laurel

avatarmoderator
sent on September 23, 2013 (18:47) | This comment has been automatically translated (show/hide original)

Magnification - Optimal Aperture - Aperture limit
1x - f/2.8 - f/13 f/16
2x - f/2.8 - f/13 f/16
3x - f/2.8 - f/10 f/13
4x - f/2.8 - f / 8 to f/10
5x - f/2.8 - f/5.6 f / 8

I found this grill exhaustive on your optics and see how you would have more margin to 5x, you will only see if in addition to f.5, 6 is also acceptable f.6, 3 and f.7, 1


hello, laurel

avatarsenior
sent on September 24, 2013 (18:50) | This comment has been automatically translated (show/hide original)

Thank you very much :) The link I try to recuperartelo, had put a user on another forum (of all 'other address) in which they discussed photomicrograph of entomological subjects, tonight I try :)
A 5X I did tests to 5.6 to 2.8 to 4, which on the same image, of course, varying the number of shots, and I noticed that 5.6 was beginning to be a little less good than 4 (almost irrelevant things, but I generated more artifacts during assembly visible at 100%) but maybe it was just my feeling or some error in the recovery phase, if the evidence gathering place and maybe the next few days, if I have time, also inspired at smaller apertures to make a comparison. I did not do against a lower magnification, if not at 1X where I saw a stack of some photos to f4 were more detailed, sharper than one at f13. But even they could be betterere just my feeling.
I promise to do a series of tests, maybe I have a flawed lens (I hope not!).


avatarjunior
sent on January 20, 2014 (17:42) | This comment has been automatically translated (show/hide original)

hello, excuse the ignorance, but for the 56 shots you used a guide to moving millimeter mm mm? or even less?

avatarsenior
sent on January 20, 2014 (18:01) | This comment has been automatically translated (show/hide original)

I used a linearstage a lathe (got it on ebay) and I went ahead about 0.1 mm if I remember correctly ;)


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