NEX Images Thread
/forum/topic/969329/540

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ebookman
Registered: Jul 15, 2012
Total Posts: 1356
Country: United States

sebboh wrote:
i finally finished and am happy with my conversion of the g28 into a rokkor helicoid, so i had to shoot some bench shots to properly inaugurate it.
~f/5.6:

Congratulations! Outstanding. I followed your progress, all the time wondering what was the resale value of the accumulated parts of the two lenses. I am in no way tempted to follow in your steps, but I admire your achievement all the more for just having thrown away a Minolta lens I had managed to impair beyond hope.



sebboh
Registered: Nov 02, 2009
Total Posts: 12607
Country: United States

ebookman wrote:
Congratulations! Outstanding. I followed your progress, all the time wondering what was the resale value of the accumulated parts of the two lenses. I am in no way tempted to follow in your steps, but I admire your achievement all the more for just having thrown away a Minolta lens I had managed to impair beyond hope.


oh no! what happened to the minolta lens?

as far as resale value goes i spent $15 on the rokkor, a bit more than $300 for the g28, and about $10 for raw materials. the entire thing conversion was non-destructive so both lenses could be fully restored if i were ever inclined (anybody need a g28 body minus optics?).

here's a couple quick shots of the final lens:










i'll post some pics of how the aperture connection was made in the lens modification thread later.

and a couple non-bench shots with the lens:











sculptormic
Registered: Feb 05, 2012
Total Posts: 2582
Country: Netherlands

Impressive Sebboh. Quiet a technical achievement!



lumis beans
Registered: Mar 15, 2007
Total Posts: 224
Country: United States

Yea, that is sweet and I'm full up to the dome of my head with jealousy. Super nice work, Seb.

Did you take any in-the-process pics?



Jim Schemel
Registered: Oct 18, 2006
Total Posts: 4931
Country: United States

sebboh - lens looks great.I had the Contax 28 for a while and i agree a better focus throw will make it an awesome lens.
-Jim

Nex 7 / Rokkor 50 @1.4
Winter Wheat_ by jmschemel, on Flickr



Jim Schemel
Registered: Oct 18, 2006
Total Posts: 4931
Country: United States

sebboh - lens looks great.I had the Contax 28 for a while and i agree a better focus throw will make it an awesome lens.
-Jim

Nex 7 / Rokkor 50 @1.4
Winter Wheat_ by jmschemel, on Flickr



sebboh
Registered: Nov 02, 2009
Total Posts: 12607
Country: United States

lumis beans wrote:
Yea, that is sweet and I'm full up to the dome of my head with jealousy. Super nice work, Seb.

Did you take any in-the-process pics?


thanks! i posted pictures of the fabricated parts here: http://www.fredmiranda.com/forum/topic/1159122/4#11560394
prior to trimming them for infinity.

the beginning of that thread shows how to disassemble each lens too.



Jim Schemel
Registered: Oct 18, 2006
Total Posts: 4931
Country: United States

NEX 7 / Jupiter 9
-Jim


Flowers by Jupiter 9 by jmschemel, on Flickr



uhoh7
Registered: Nov 12, 2010
Total Posts: 4215
Country: N/A

Beautiful mod on the 28







nikon 50 @ 1.4 w/ lens turbo (lens turbo is not great, but good for this sort of thing---horrible for landscapes)







neighborhood riff raff with sony 70400g







leica 28/2







CV 20







leica 90 highest peak in idaho.


shelt
Registered: Apr 18, 2003
Total Posts: 376
Country: United States

From the Marin coast: NEX-6 & 35 Lux FLE



joanlvh
Registered: Oct 19, 2008
Total Posts: 1750
Country: United States

Pen f 42mm + 7



sebboh
Registered: Nov 02, 2009
Total Posts: 12607
Country: United States

g28:






ebookman
Registered: Jul 15, 2012
Total Posts: 1356
Country: United States

Nex 5n with Minolta Zoom MD 35-70mm f/3.5 and Carl Zeiss Jena 135mm f/3.5
Interstate 5 bridge collapsed after being hit by truck.



Jim Schemel
Registered: Oct 18, 2006
Total Posts: 4931
Country: United States

ebookman - very close to home.Glad you are safe.Nice journalistic shots.
-Jim



partitura
Registered: Aug 22, 2008
Total Posts: 384
Country: United States

Joan -

I really like this shot from my home city.



JimParsons
Registered: Jul 06, 2003
Total Posts: 217
Country: United States

ebookman wrote:
Nex 5n with Minolta Zoom 35-70mm f/3.5 and Carl Zeiss Jena 135mm f/3.5
Interstate 5 bridge collapsed after being hit by truck.


Great clarity on these shots. Amazing no one was killed. Different time of day and it could have been a much different story.



sebboh
Registered: Nov 02, 2009
Total Posts: 12607
Country: United States

whoa! crazy.

some more with the g28











joanlvh
Registered: Oct 19, 2008
Total Posts: 1750
Country: United States

thanks, Partitura, it is your home city!
thanks also for the bridge collapse pictures, interesting to see, glad everyone is OK
and I really like the background blur from Sebboth, is your g28 mod a very fast lens?



sebboh
Registered: Nov 02, 2009
Total Posts: 12607
Country: United States

joanlvh wrote:
and I really like the background blur from Sebboth, is your g28 mod a very fast lens?


ha, no it's still f/2.8 (actually the flower shot is at f/4.5). it's just capable of macro focusing now. the flower is quite tiny (less than 1cm in diameter), no idea what they're called though.



helimat
Registered: Apr 06, 2008
Total Posts: 3991
Country: Canada

ebookman wrote:
Nex 5n with Minolta Zoom 35-70mm f/3.5 and Carl Zeiss Jena 135mm f/3.5
Interstate 5 bridge collapsed after being hit by truck.


Great shots ebookman. I have been following this story with some interest, and the last shot of yours is the best shot I have seen on the internet for seeing what happened.



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