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02-23-2014, 11:44 AM - 1 Like   #1
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CS adapter for the Q

H8 RX to Pentax Q | eBay

Seller says it's a CS mount adapter from his shop. I've ordered one up.

02-23-2014, 03:27 PM   #2
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Interesting and opens up a new world of easy to mount cheap lenses if it works!
02-23-2014, 04:25 PM   #3
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I built my CS adapter altering a D-2-Q adapter by opening up the hole to 1" and gluing in a CS lens. The D-2-Q adapter is available om Ebay for about $6 you just need a thin shim under the lens, a little trial and error for thickness. At that price I have an adapter glued to 2 of my CS lenses
02-24-2014, 05:39 AM   #4
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Intriguing, but it's kinda steep for a little metal ring, IMO. Hopefully someone will come out with a more reasonably priced one.

02-24-2014, 05:53 AM   #5
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QuoteOriginally posted by Clinton Quote
H8 RX to Pentax Q | eBay

Seller says it's a CS mount adapter from his shop. I've ordered one up.
Beware, H8 RX mount is NOT a CS mount. H8 RX mount is the mount of H-8 REX cameras, the first 8mm cameras designed by Bolex. These are 8mm reflex cameras equipped with a turret.

Bolex Collector | Cameras | H-8 REX

The H8 RX mount is close to the C mount except that the optical distance between lens seat and film plane is 15.305mm compared with 17.52 on regular C mount and 12.5mm on CS mount.
02-24-2014, 08:13 AM   #6
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QuoteOriginally posted by Mistral75 Quote
Beware, H8 RX mount is NOT a CS mount. H8 RX mount is the mount of H-8 REX cameras, the first 8mm cameras designed by Bolex. These are 8mm reflex cameras equipped with a turret.

Bolex Collector | Cameras | H-8 REX

The H8 RX mount is close to the C mount except that the optical distance between lens seat and film plane is 15.305mm compared with 17.52 on regular C mount and 12.5mm on CS mount.
So while the lens may be mountable, the registration distance maybe an issue....let us know when you get it....
02-24-2014, 08:17 AM   #7
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QuoteOriginally posted by Mistral75 Quote
The H8 RX mount is close to the C mount except that the optical distance between lens seat and film plane is 15.305mm compared with 17.52 on regular C mount and 12.5mm on CS mount.
So the bottom line is the lens will be a couple of mm too far away from the sensor to focus properly. Bummer.
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