[Leica] OT: GH1, GF1 Adapters

[henningw at archiphoto.com (Henning Wulff)]

>Just like Contarex, Canon EOS and Nikon G lenses, the aperture on 
>Maxxum mount lenses is controlled  from the camera body. I don't 
>believe you will be able to change it.
>
>I'd advise you to send the Sony lens back and get an old  manual 
>focus macro Nikkor, Canon FD, Minolta MD or similar lens.
>
>----- Original Message ----- From: "James Laird" <digiratidoc at gmail.com>
>To: "Leica Users Group" <lug at leica-users.org>
>Sent: Tuesday, April 13, 2010 9:08 AM
>Subject: [Leica] OT: GH1, GF1 Adapters
>
>
>>I recently order a Sony 30mm f/2.8 Macro on impulse while ordering
>>  some supplies from B&H. It arrived today but I'm still waiting for my
>>  adapter for Sony Minolta MA lenses to arrive from Singapore on the
>>  boat (Seriously, I paid for it on e*** March 26th and haven't seen it
>>  yet!). While unpacking the lens I noticed that Sony Alpha lenses have
>>  no aperture control. Is there a way to adjust the aperture while on an
>>  adapter so I can use it with my GH1? I ordered it cause I wanted a
>>  small, light macro lens on my GH1, it has good reviews and it's
>>  inexpensive. Do the adapters control the aperture, or am I missing
>>  something obvious?
>>
>>  Jim Laird
>>

I have a reverse adapter for the Panasonic; it allows the reverse 
mounting of the 14-45 zoom which happens to be an excellent macro 
lens when thus used. The only thing is that before using it that way, 
I have to have it mounted normally and set the lens to the aperture I 
want to shoot with, stop it down with the dof preview button, and 
dismount the lens while holding down that button.

The aperture then stays at the one set and I reverse mount the lens. 
Focussing and shooting at the stopped down aperture causes no 
problems on the Panasonic cameras, as the magnified focussing is 
excellent and the LCD brightens automatically. The whole thing sounds 
clumsier than it is in practice.

I can also use EOS lenses in this way, but that doesn't work as 
smoothly since I have to have an EOS body around to stop down the 
lens, and the stop down function isn't a button but a menu item. So 
it's easier to set the camera manually at say a 1 sec exposure and 
the aperture I want, hit the shutter button and take the lens off 
while the shutter is open. Then I can put the EOS lens on the adapter 
and on the Panasonic camera.


-- 

    *            Henning J. Wulff
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