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Results of my speedboosted lenses [C&C]
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PostPosted: Fri Apr 28, 2017 4:49 pm    Post subject: Results of my speedboosted lenses [C&C] Reply with quote

Hello,
I do a lot of tinkering with lenses and cameras. After lens adapting I soon started mount conversions, and after short time I found it not so interessting - it simply was an aid to get the lens on the camera.
I get more interested to modifiy lenses - the optical setup.

Since some years I do lens speedboosting to get lenses faster and with shorter focal length (have posted here something a while ago).
Near always my camera is with 24x36mm sensors, I do not care about smaller ones. I use at the moment both homemade spedboosters with more extreme results, and the Kipon medium format 0.7x speedbooster for sharper and a bit more normal image results. Still my implementation has a bit special bokeh.

210mm f/2.0 - Canon FD 300mm f/2.8L + Kipon 0.7x + Sony A7II

Streetwear by Markus, auf Flickr

280mm f/2.0 - Canon FD 400mm f/2.8L + Kipon 0.7x + Sony A7II

Lady Long Legs by Markus, auf Flickr


Last edited by ZoneV on Tue May 16, 2017 9:11 am; edited 1 time in total


PostPosted: Fri Apr 28, 2017 7:16 pm    Post subject: Reply with quote

Like 1 Like 1 Like 1 Well done Markus!!


PostPosted: Sat Apr 29, 2017 3:33 am    Post subject: Reply with quote

Very cool, a 210 and 280mm f/2. Each of those lenses look as if they're doing a bit of the old "swirly bokeh" with that Kipon adapter.


PostPosted: Sat Apr 29, 2017 10:07 am    Post subject: Reply with quote

Yes, some wirl and a littel bit overcorrected spherical aberration.
Love them much this way. And still can easy change to normal setup with very neutral clean bokeh.

Mirror 350mm f/4 - Rubinar 500mm f/5.6 and Kipon lens tubro 0.7x and Sony A7II

Tattooed Women and Cherry Blossoms by Markus, auf Flickr


PostPosted: Mon May 15, 2017 10:48 am    Post subject: Reply with quote

Good ones!!! Laughing


PostPosted: Tue May 16, 2017 6:37 am    Post subject: Reply with quote

Like 1 Like 1


PostPosted: Tue May 16, 2017 8:09 am    Post subject: Reply with quote

Like 1 Like 1


PostPosted: Tue May 16, 2017 9:10 am    Post subject: Reply with quote

Thank you Smile

Here a result of my rare Wollensak Aero Raptar 6" f/2.5 - what is most likely a licened copy of the Kodak Aero Ektar lens.
Here again with Kipon 0.7x speedbooster on Sony A7II

Sunny by Markus, auf Flickr