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Thread: G-Rokkor 28/3.5 on A7 or best compact 28 on A7

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    G-Rokkor 28/3.5 on A7 or best compact 28 on A7

    So after seeing that awesome set-up from Vivek, I was obsessed with getting a very compact for travel. I would weigh form and IQ about the same since I don't want to compromise too much. Zero down the normal lens to be the new Heliar 40/2.8. So I'm looking for a 28 right now.

    So I wonder if anyone has shot with the G-Rokkor 28 ens on the any of the A7 series. Seem like an interesting lens, kinda rare and expensive too. I couldn't find much info on any RF forum, let alone A7 experience. I know the Leica Elmarit 28 ASPH is pretty small and sharp but would rather not spending that much. I guess the Skopar 28 is a bust. Any suggestion would be much appreciated. Pictures would always be welcome .

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    Re: G-Rokkor 28/3.5 on A7 or best compact 28 on A7

    Hi, I considered this for a while and dismissed it. Even on the Ricoh (APS-C, optimised for Leica lenses), it does not seem to do all that well (web samples). Corners are going to be mushy on full frame.

    The 2.8cm f/6.3 Hektor is OK on the A7s but flares very easily and quite badly. The 28mm f/6 Orion-15 is a little better w.r.t flare.

    The M Rokkor 28mm f/2.8 with its original hood still appears to be a better choice and is in the same price range of a Hektor without its original hood that is very rare and is a lot more expensive than the lens itself.

    Added:

    http://koikecamera.com/log/

    https://mrlazyli.wordpress.com/2013/...87a7r-preview/
    Last edited by Vivek; 10th February 2015 at 01:41.

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    Re: G-Rokkor 28/3.5 on A7 or best compact 28 on A7

    I snapped this earlier (the Sun has already set and very poor light).

    Untitled by Vivek Iyer, on Flickr
    7s, Orion-15 28/6, f/8, 1/50s, ISO2500, Handheld

    100% crops:

    Bottom:

    Untitled by Vivek Iyer, on Flickr

    Center:

    Untitled by Vivek Iyer, on Flickr

    This is likely to be better in better light but it will never be "stellar". The lens (alone, no adapter) weighs ~60gms.

    Edit:

    Here is the weight.

    Untitled by Vivek Iyer, on Flickr
    Last edited by Vivek; 10th February 2015 at 16:17.

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    Re: G-Rokkor 28/3.5 on A7 or best compact 28 on A7

    Thank you so much Vivek . Your Google-fu is impressive! 60g and less than $250... very tempting... Is there anything I need to look out for with these Russian optics?

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    Re: G-Rokkor 28/3.5 on A7 or best compact 28 on A7

    Quote Originally Posted by Vivek View Post
    Here is the weight.
    Off topic, but I'm curious about that scale; looks extremely handy. Do you know what brand/model is it?

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    Re: G-Rokkor 28/3.5 on A7 or best compact 28 on A7

    Quote Originally Posted by hiepphotog View Post
    Thank you so much Vivek . Your Google-fu is impressive! 60g and less than $250... very tempting... Is there anything I need to look out for with these Russian optics?
    You are welcome!

    It is a Zeiss Topogon clone , 4 elements like this (( )). Make sure it was not "CLA"d. The lens alignment is critical. Cosmetics should not be bothered about. My sample came with a deep rear bakelite cap and the original aluminum front cap. Since the lens is deeply recessed, no need for a hood (filter threads 40.5mm). Also, it has a restricted diaphram. => Can be used wide open.

    Quote Originally Posted by MikeEvangelist View Post
    Off topic, but I'm curious about that scale; looks extremely handy. Do you know what brand/model is it?
    Mike, eBay, from P.R.C. ~$5 shipped. Uses AAA batteries.

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