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September 17, 2010


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hi, can this hood works with a Summaron 35mm ? thanks

Bo Lorentzen



How do I order the hood?

John Rainier Solanzo

Hello, I'd like to order a hood but your email is nowhere to be found.

Robert Vincent

How do I order a hood for the Nokton 35/1.4??

Ronald Moravec

I could use a shade for 21 2.8 pre asph for use on M8. 60 mm filter size

Also 15 mm CV in screw mount that will hold a uv/ir filter .

Victor Cho

How can I order you lens hood that I will use it on the zeiss ZM 50mm f2?


How can I order a hood?


I would like to order a hood, but I can't find your email. Please contact me.


Hi Bo, from what I gather this hood can be used on a ZM 50/2 Planar. I would like to have one, but I also could not find your address.
Could you contact me?


hi Bo, just got this lens to pair with my M8 and love not only the look of the lens but the practical aspect of filtering out unwanted flare. How can I order one of these?


I want to get this hood from you, but what's your email?


I have tested the hood on a CV Nokton 35/1.4 (standard version, no SC) and on a Zeiss Biogon 2/35 ZM.

Even if the Nokton and the Biogon hoods are interchangeable, Bo's hood gets bowed on the Biogon. I suspect a slightly bigger hood mount on the Biogon.

Now, the great thing is Bo's hood DOES work! I took some pictures yesterday at Bastille Opera House on a sunny at 7:30 PM (5:30 PM solar time) under a difficult light. Bastille Opera House has a lot of glass which makes a lot of reflections under that lighting.

I took 10 pictures of 5 different scenes (two pictures for each scene): I took the first picture using the original Voigtländer hood and the second one using Bo's hood. Then I took the second scene in the same order and so on.

The results: I got flare in scenes three and four on pictures taken using the Voigtländer hood but no flare on pictures taken with Bo's hood. Contrast seems to be improved but it's difficult to say on those pictures.

I will proceed to do some more tests in the following days, especially concerning contrast.

Even if I carry my camera on my shoulder capless, I put the lens cap when I place the camera into the camera bag. My only rant about Bo's hood would be you need to remove the hood to place the cap. I think a similar lens cap to the Tri-Elmar 16-18-21 or Summilux-M 35/1.4 would make me a really happy man ;-)


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