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Finally I have a working version from Novoflex 40cm f/5.6
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PostPosted: Sun May 06, 2007 10:55 pm    Post subject: Finally I have a working version from Novoflex 40cm f/5.6 Reply with quote

I missed a part from the lens barrel. I found a solution how can I fix it. Need to get couple of M42 extension rings and try to figure out the right length of this tube. When it is done, it will works perfect. I opened this lens for cleaning , what a simple construction. This was the most easy lens maintenance in my experience. This lens has only one glass! Perhaps glued from two parts. I curios really this lens quality, I heard a lot information , how sharp in central part and how fast to catch the right focus. Today I tested with a temporary extension rings , focusing almost fast like AF . I guess I will love this lens if optical quality will be good enough too. I am worry about a little from hand-held shooting 400mmx2 on my Olympus = 800mm focal length.


PostPosted: Sun May 06, 2007 11:03 pm    Post subject: Reply with quote

800mm FL and no IS/VR? That's tripod country for sure.

Bill


PostPosted: Sun May 06, 2007 11:24 pm    Post subject: Reply with quote

Sample shoot from hand, f/5.6 (wide open) 1/640.


PostPosted: Sun May 06, 2007 11:57 pm    Post subject: Reply with quote

excellent bokeh from what I can see.


PostPosted: Mon May 07, 2007 12:00 am    Post subject: Reply with quote

And sharpness not bad from a 400mm lens I guess. I curious really how this lens perform on sunny days.


PostPosted: Mon May 07, 2007 12:01 am    Post subject: Reply with quote

Not bad, Iron Man!
Let's see you do that all day long, tho. Laughing

Bill


PostPosted: Mon May 07, 2007 12:02 am    Post subject: Reply with quote

Hahaha, this lens not heavy like Pentacon 500mm.