Is the Tokina RMC 500mm f8 Mirror Lens a T-mount?

GibbyTheMole · 04-07-2011, 02:14 PM

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I know where I might be able to get one for a good price, but it's a Nikon mount. The seller didn't know whether it has a detachable T-mount as a lot of the others do. I thought if it were a T-mount, I could swap out the Nikon adapter for a Pentax adapter.

Cheers,
Bobbo :-)

**.a.t.** · 04-07-2011, 05:03 PM

I don't have this lens, but based on these reviews Tokina 500mm f8 Mirror Lens Lens Reviews - Pentax Third-Party Lens Review Database and a quick google search RMC Tokina 500mm 1:8 - Camerapedia
it sounds as if this lens doesn't come with a T mount.

Too bad, because it seems to be a good one.

GibbyTheMole · 04-08-2011, 04:25 AM

Yeah, that's kinda what I suspected. Ah well...

excanonfd · 04-08-2011, 10:22 PM

See if you can obtain a good resolution picture of the lens mount and post it here, maybe someone can determine if it is a T-mount or not and/or possibly convert it to a PK mount. Nikon lenses have longer registration distance than Pentax, so converting it to Pentax is certainly possible and still retain infinity focus.

Blue · 04-09-2011, 11:12 AM

The Tokina 500mm mirror came in a k-mount version. The show up in various places from time to time including the Marketplacy, FleaBait, KEH, Blue Moon etc. etc. so I'm not sure it is worth the trouble to convert one. However, the Nikon mount would be the most straight forward to convert.

ivoire · 04-09-2011, 09:31 PM

There was a Tokina 500mm produced in M42 mount. A copy is for sale on ebay now. If you could get a pic of the mount, it might be possible to determine if that lens is M42.

http://mamiya-nc-m42.mflenses.com/m42_tokina_500_8.htm

Tokina 500mm f8 Mirror Lens Pentax M42 Universal Screw | eBay

04-07-2011, 02:14 PM	#1
GibbyTheMole Veteran Member Join Date: Nov 2009 Location: Iowa Photos: Albums Posts: 2,275	Is the Tokina RMC 500mm f8 Mirror Lens a T-mount? Staff note: This post may contain affiliate links, which means Pentax Forums may earn a small commission if a visitor clicks through and makes a purchase. If you would like to support the forum directly, you may also make a donation here. I know where I might be able to get one for a good price, but it's a Nikon mount. The seller didn't know whether it has a detachable T-mount as a lot of the others do. I thought if it were a T-mount, I could swap out the Nikon adapter for a Pentax adapter. Cheers, Bobbo :-)

04-07-2011, 05:03 PM	#2
.a.t. Site Supporter Join Date: Mar 2011 Location: yesterday Photos: Gallery Posts: 1,261	I don't have this lens, but based on these reviews Tokina 500mm f8 Mirror Lens Lens Reviews - Pentax Third-Party Lens Review Database and a quick google search RMC Tokina 500mm 1:8 - Camerapedia it sounds as if this lens doesn't come with a T mount. Too bad, because it seems to be a good one. Last edited by .a.t.; 04-07-2011 at 05:06 PM. Reason: syntax

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04-08-2011, 04:25 AM	#3
GibbyTheMole Veteran Member Join Date: Nov 2009 Location: Iowa Photos: Albums Posts: 2,275 Original Poster	Yeah, that's kinda what I suspected. Ah well...

04-08-2011, 10:22 PM	#4
excanonfd Veteran Member Join Date: Jan 2010 Location: Vancouver, BC Posts: 1,421	See if you can obtain a good resolution picture of the lens mount and post it here, maybe someone can determine if it is a T-mount or not and/or possibly convert it to a PK mount. Nikon lenses have longer registration distance than Pentax, so converting it to Pentax is certainly possible and still retain infinity focus.

04-09-2011, 11:12 AM	#5
Blue Moderator Site Supporter Join Date: Jun 2008 Location: Florida Hill Country Photos: Gallery \| Albums Posts: 17,377	The Tokina 500mm mirror came in a k-mount version. The show up in various places from time to time including the Marketplacy, FleaBait, KEH, Blue Moon etc. etc. so I'm not sure it is worth the trouble to convert one. However, the Nikon mount would be the most straight forward to convert.

04-09-2011, 09:31 PM	#6
ivoire Veteran Member Join Date: Mar 2007 Photos: Gallery Posts: 3,381	There was a Tokina 500mm produced in M42 mount. A copy is for sale on ebay now. If you could get a pic of the mount, it might be possible to determine if that lens is M42. http://mamiya-nc-m42.mflenses.com/m42_tokina_500_8.htm Tokina 500mm f8 Mirror Lens Pentax M42 Universal Screw \| eBay