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Old Feb 13, 2013, 11:03 PM   #1
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Default Questions about adapters

Now that the original Q is getting so low in price the idea of owning one is looking more appealing. But I am confused about the PK-Q adapters. I have seen some or as little as $20 whereas the Pentax one costs more than the actual camera and lens does now. IIRC it has a built in shutter so that it will synch with the flash. Is that right? What happens if you buy one that doesn't have this feature? I seem to recall one that has a built in aperture as well, does the Pentax one have this? How does that feature work?

Also wondering if anyone has tried an apter for any other mount lenses?

Many thanks for any and all help.

John
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Old Feb 14, 2013, 1:00 AM   #2
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After checking on ebay I see I can get an adaptall mount for he Q now from China so if i do get a Q I will probably go that route since most lenses i would use on it are adaptalls (all my really good glass is).

John
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Old Feb 15, 2013, 3:24 PM   #3
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G'day John

I don't know the Q system or adapters, but...
for the m4/3 system, most adapters are simple devices [like traditional extension tubes] that simply bolt a lens onto the camera body - and these adapters are in the $20+/- range

However, some adapters have the electrical connectors to sync the lens to the cameras electronics - and these adapters cost in the $75 to $300 range

Regards, Phil
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Old Feb 16, 2013, 3:13 AM   #4
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There are two big things the Pentax-branded adaptor offers over the aftermarket versions:

1) There is a mechancial shutter in the adaptor (the Q body has an electronic shutter) that will avoid the so-called "rolling shutter" distortion. This is important when working with moving subjects and/or shooting video. The regular Q 01 prime plus 02 and 06 zooms have mechancial shutters in them as well. But Pentax K-mount lenses don't.

2) The official Pentax adaptor also allows the Q in-body image-stailization system to work with K-mount lenses by providing lens focal length information to the body. Those aftermarket adaptors are simply "dumb" metal adaptors that transfer no information between lens and camera.
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Old Feb 18, 2013, 3:47 PM   #5
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Quote:
Originally Posted by Biro View Post
There are two big things the Pentax-branded adaptor offers over the aftermarket versions:

2) The official Pentax adaptor also allows the Q in-body image-stailization system to work with K-mount lenses by providing lens focal length information to the body. Those aftermarket adaptors are simply "dumb" metal adaptors that transfer no information between lens and camera.
The items 1 & 2 above are true but just to add a little info, you can still use the in body image stabilization with 3rd party adapters after a firmware update to the latest Pentax provided firmware for the Q. This firmware adds the ability to input lens focal length and enable SR (Pentax Image stabilization).

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Old Feb 19, 2013, 11:10 AM   #6
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Thanks for the info guys. Since I don't plan on shooting video much if at all (never remember that my KX can) the shutter may not be a big deal and if i can manually input focal length than I think I could get by with a cheaper one.

John
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Old Feb 19, 2013, 8:45 PM   #7
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Of the inexpensive adapters, I can recommend those sold by Fotodiox - they are well built and can be gotten with tripod sockets (a nice bonus, since adapted lenses are relatively long and heavy, so this takes the load off the lens mount) and a lock ring that enables the lens diaphragm either to be held open (without it you would be shooting only at minimum aperture) or released. These can be found on Amazon, along with others.
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Old Feb 20, 2013, 10:23 AM   #8
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Quote:
Originally Posted by penolta View Post
Of the inexpensive adapters, I can recommend those sold by Fotodiox - they are well built and can be gotten with tripod sockets (a nice bonus, since adapted lenses are relatively long and heavy, so this takes the load off the lens mount) and a lock ring that enables the lens diaphragm either to be held open (without it you would be shooting only at minimum aperture) or released. These can be found on Amazon, along with others.
Thanks for the tip. I have used other Fototdiox items and been very pleased with them. I will look into them.

John
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