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Cooke Aviar f/8 page, added also a f/4.5 page
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PostPosted: Fri Apr 04, 2008 6:44 pm    Post subject: Cooke Aviar f/8 page, added also a f/4.5 page Reply with quote

The Aviar in Compur with a really red leather stripe, just for looks Smile (BTW, this dial-set Compur shutter is the widest that can be mounted on this type of bellows):



I've uploaded an initial Cooke Aviar page at http://galactinus.net/vilva/retro/eos350d_aviar_f8.html, all photos at f/8, contrast adjusted. Of course, the micro contrast of this uncoated lens isn't up to Leica-R level, but otherwise I have precious little to complain about -- well, it's a pain to leave out photos...

Here is a crop, bellows focused at f/8 on 350D:



and a whole frame:



A crop thereof:



I just wonder what a later, coated Aviar would be like compared to this 70 years old specimen.

The added f/4.5 page: http://galactinus.net/vilva/retro/eos350d_aviar_f45.html

Veijo


Last edited by vilva on Sat Apr 05, 2008 7:31 am; edited 2 times in total


PostPosted: Fri Apr 04, 2008 7:30 pm    Post subject: Re: Cooke Aviar page Reply with quote

vilva wrote:
I've uploaded an initial Cooke Aviar page at http://galactinus.net/vilva/retro/eos350d_aviar_f8.html,...


That's really an impressive lens!

P.S.: I am sure you know these sites, but just in case...
http://www.cookeoptics.com/cooke.nsf/history/1910
http://www.f32.net/Services/Equipment/Lenses/cooke.php
http://tonopahpictures.0catch.com/PorcelainCoffeepot/ThePorcelainCoffeepotPictures.html


PostPosted: Sat Apr 05, 2008 3:55 am    Post subject: Re: Cooke Aviar page Reply with quote

LucisPictor wrote:
That's really an impressive lens!


Yes, it is.

Quote:
P.S.: I am sure you know these sites, but just in case...
http://www.cookeoptics.com/cooke.nsf/history/1910
http://www.f32.net/Services/Equipment/Lenses/cooke.php
http://tonopahpictures.0catch.com/PorcelainCoffeepot/ThePorcelainCoffeepotPictures.html


Yes, I do know, thanks anyway. I probably even posted the second one when I bought the Aviar, and I considered posting the last one along with this announcement but thought that a down-sampled LF frame tells pretty little about the behaviour of a similar lens on a crop dSLR. BTW, the frame size of the Kodak 1A from which I extracted this lens is 64 mm x 109 mm, 1.5 times the area of the 56 mm x 82 mm of a 6x9 - it's a pity 116 format film isn't available anymore. I even considered converting the camera to use 120 format film in order to get a frame size of 56 mm x 109 mm, but ensuring film flatness would have been difficult and changing the position of the red window would have been another hassle.

Next I intend to see how the lens performs on a 5D - additionally also at f/11, which would already exhibit some softening due to diffraction on a 350D. This might be the lens for more traditional landscapes instead of my f/4.5 with the 105 mm Radionar, which was my favourite last summer.

Veijo