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Thread: Ricoh GXR - M Lens camera unit almost there ...

  1. #151
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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Quote Originally Posted by sinwen View Post
    Exactly ! I won't buy a leica M digital for this reason.
    So as you have many different cameras, I repeat my question differently then, how good is this sensor compare to what you have else.
    And I repeat also that I wonder if the sensor in this A12-M is a bit out today and you are well in position to answer that I think.
    Michel,

    It's the same sensor as in the other GXR A12 camera units, although it has been optimized for use with the M-bayonet RF lenses.

    Comparing the image output to my other cameras of recent years, in broad strokes it's on par or better performance than my Pentax K10D, Panasonic L1 and G1, and Olympus E-1. The Olympus E-5 supports ISO 6400 in addition to the ISO 3200 supported in the GXR A12 module, but the GXR's noise and quality at ISO 3200 is right on par.

    The E-5 also has the least anti-aliasing of any of the other cameras (whether it has none or simply very little I"m not sure or) so it is a good comparison to the A12-M with respect to acutance. It's a smaller sensor (13x17.3 vs 16x24 mm) so slightly higher pixel density, but with equivalent FoV focal length proves to have very similar to slightly better acutance to the existing A12 AF camera units, and my quick test of Uwe's A12-M shows it to be in the same ballpark. I think I'd rate the E-5's sensor and supporting electronics slightly better performing on that basis, since it is somewhat smaller, but i'm splitting hairs there.

    So whether this sensor is "outdated" or not makes little difference to me. From what I've seen, it is an excellent sensor with outstanding acutance, dynamic range and sensitivity. The sensitivity and dynamic range is as much as I need. Presuming that its optimization for the RF lenses it was designed to work with works as advertised (and it seems to), I see no problem at all in adopting it as my standard camera. The E-5 has advantages in speed and responsiveness, but I only rarely need those qualities ... the advantages of the GXR+A12-M in size and use of Leica M-bayonet lenses is quite valuable to me. It's also nicely less expensive than the E-5 body.

    Of course, I retain the freedom to change my opinions and evaluation once I've had a month or three to work with the A12 Camera Mount. Mine should arrive next week... And I'm eager to have it!

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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Thanks for your reply Godfrey.

    You know I don't buy a camera every now & then, as far as it fits my needs I keep it, so the decision has to be well thought and I am in no hurry.
    That's where such forum can help.
    I understand your eagerness and I am in the same mind waiting to see your pictures.

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    Subscriber Member Jorgen Udvang's Avatar
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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Quote Originally Posted by Godfrey View Post
    Uwe,

    You're certainly having fun with that camera. I can't wait for mine to arrive.

    The Rayqual Nikon F to Leica M mount adapter arrived. Much trimmer than the COMA in appearance, lighter too, and it feels just as precisely made.
    Godfrey,
    Do you know if they make an OM to M-mount adapter as well? If that is the case, this may be a more interesting camera to me than the E-5, assuming that they have similar sensor/filter characteristics, and since I seem to be leaning towards a GH2 for sports etc.

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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Quote Originally Posted by Jorgen Udvang View Post
    Godfrey,
    Do you know if they make an OM to M-mount adapter as well? If that is the case, this may be a more interesting camera to me than the E-5, assuming that they have similar sensor/filter characteristics, and since I seem to be leaning towards a GH2 for sports etc.
    Rayqual makes an Olympus OM to Leica M-bayonet mount adapter. I bought one of the Rayqual adapters for Nikon F mount, it seems very nicely made. They can be obtained from Japan Exposures (and other places too, I'm sure):

    http://www.japanexposures.com/2010/0...inder-adapter/

    The GXR is a very different camera compared to the E-5 in many ways, but they both produce outstanding image quality.

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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Thank you for the link, Godfrey.

    What I particularly like with the E-5 is the "crispness" of the photos. If I can get the same crispness out of a body that is half the weight and size and somewhat cheaper than an M9, it's all good, isn't it?

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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Quote Originally Posted by Jorgen Udvang View Post
    Thank you for the link, Godfrey.

    What I particularly like with the E-5 is the "crispness" of the photos. If I can get the same crispness out of a body that is half the weight and size and somewhat cheaper than an M9, it's all good, isn't it?
    LOL ... Buying the E-5 plus the GXR+A12 Camera Mount+VF-2 altogether comes to "somewhat cheaper than an M9" ... ! ]'-)

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    Re: Ricoh GXR - M Lens camera unit almost there ...

    Quote Originally Posted by Godfrey View Post
    LOL ... Buying the E-5 plus the GXR+A12 Camera Mount+VF-2 altogether comes to "somewhat cheaper than an M9" ... ! ]'-)
    Good idea, and if I skip the Noctilux as well, I can add a new car to the package

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