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Modified G-Biogon 21/2.8
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PostPosted: Sat Nov 15, 2008 5:13 pm    Post subject: Modified G-Biogon 21/2.8 Reply with quote

I have finally adjusted infinity focus for this lens using M8.
Here is the most boring photos of the year. Very Happy

@inifiniy f2.8 CN tower (Toronto is in rain today)

@~3m f2.8

The both were shot with M8, ISO 160 with UV/IR cut filter. I did use 6-bit code
since almighty CORNER-FIX software did not work well with this G-Biogon 21mm.
The reason is ConerFix program makes rather course gradient_corner_vignetting_
template_image, most likely due to fairly steep light fall off of this G-Biogon 21mm.

The one more reason for the above infinity focus adjustment is to fix "modification
error" done by the shop which did. The detail of this problem is not stated here
since it is too complicated to explain, my english is not adequate enough. Crying or Very sad

When the weather gets better, will go out and shoot with this newly re-born Biogon.
This lens is extremely sharp and almost distortion free as you can see the first photo,
the large one is here. > http://www.pbase.com/kkawakami/image/105950632

For lazy people, I add 100% cut in here. (from our apartment to CN-tower is 2.8Km away)

Since we cancelled Egypt trip, I have a bunch of Fuji Reala and will make pics
with films too (I have Bessa R4M).

Last edited by koji on Sat Nov 15, 2008 6:34 pm; edited 2 times in total

PostPosted: Sat Nov 15, 2008 5:15 pm    Post subject: Reply with quote

Great news Koji, I look forward to more images taken with the Biogon 21 and the dream camera Leica M8 !

PostPosted: Sat Nov 15, 2008 6:40 pm    Post subject: Reply with quote

Super Koji
These conversions to M mount are quite fun.
I love the unique look of my 45 and today is sunny so I might get to try it.
Sorry you had to cancel the trip.
I hope you find some other fun to have instead.

PostPosted: Sun Nov 16, 2008 1:51 am    Post subject: Reply with quote

Thanks for giving us a preamble to what the lens is capable of! WOW, no discernible aberrations or barreling/pincushion effects!

koji, do you scan the Reala yourself? What do you use to scan with?

Looking forward to more shots, for sure.

PostPosted: Sun Nov 16, 2008 4:29 am    Post subject: Reply with quote


I scan films by EPSON V700, I used to use VT-750(?) and Nikon
Coolscan IV before VT-750. Nikon's scanner was better in resolution wise,
and less dust involved, and its ICE worked fine.

Anyway I have to scan TX-1's panorama and some TLR's, so I stick to
flatbed_scanner whether I like it or not. Very Happy

I cannot promise when I can show film scan, but definitely.

PostPosted: Sun Nov 16, 2008 7:01 am    Post subject: Reply with quote

congrats Koji, great camera lens combo