ken_vs_ryu
Member
Any infinity/stopped down comparos with the speedbooster?
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Ah, hmm. Interesting. My stuff's mostly packed up at the moment but I did look at the lens quickly. The front element's exterior surface is nearly flat.I would check without the SB and a plain adapter. If that behavior continues then there is something wrong. If it was an used lens, check if it has all the elements (not joking) and if it had been opened for a cleaning- in this case whomever did this might have flipped an element the wrong way while putting it back (again, not joking- I have seen such stuff with used Leica lenses in particular). Can you show a picture of the front of this lens?
Thanks John, the long and short of it is that it's pretty darn tricky. Not so much the stationary things like plants and fungus, but even then you have the wind moving your subject around. Bugs on the other hand are incredibly challenging. When I am trying to line up a shot I have to deal with the small movements I am making trying to keep the subject in focus, the movement of the wind and the movement of the bug itself, all the while trying to work with the very narrow DOF you have with macro. Now, if the insect is flying....love these bugs, flowers, and that leaf!@!
how tricky is this hand held?
Thanks f/otographer!Michiel, I believe the SB formula is FL x 0.71 x 1.5= New FL. So the Distagon would be
15 x 0.71 x 1.5= 15.95
So it would basically become a 16mm f2 (due to the 1 stop increase as well). And the Helios would be a 90.5 f1.1 on the SB. Which, if I may add, is absolutely insane.
Oh thanks Vivek!Michiel, You are correct. More than the time wasting calculations (which are a fairly standard/straight forward calculations) is how a lens performs for you. With a near complete set of Contax lenses, you are in a very envious position! Those distagons are just awesome as is, and with the SB, even better!
Yeah, 3 in the 20FL range. Very expensive ....Wow!
Your missing a few distagons! oke: