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11-15-2013, 07:59 AM   #1
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Am I Ricoh-pinned down? (Tokina 80-200 F3.5-4.5)

Hi,

I wonder if you could help me out identifying this mount.

I did some googling and noticed it's got a ricoh pin, it's marked as P/K, it has a bit longer (around 2-3mm longer) lever for the aperture.

Do you think I can mount it on a K-30, or should I stay away?

It's a tokina 80-200mm F3.5-4.5 RMC.


Last edited by rrstuff; 02-03-2014 at 12:15 AM.
11-15-2013, 08:03 AM   #2
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It's a Ricoh nub not a Ricoh pin. It should be perfectly fine.
11-15-2013, 08:07 AM   #3
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Thanks for the quick reply Boriscleto, I will google ricoh nub and see what's up with that. Will that work in a program mode too?


I measured the aperture lever and it seems pretty close in length, actually. Just the lens design looks different from 18-55.
11-15-2013, 08:16 AM   #4
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Looks fine to me, all metering modes will work (make sure the ring is on A) and the nub doesn't cause problems like the pin does.

11-15-2013, 08:17 AM   #5
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You can see what the pin looks like here:
theatre of noise: Ricoh Lenses On Pentax Cameras -- The Ricoh Pin Fix
11-15-2013, 08:17 AM - 1 Like   #6
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I have this lens, and the nub has not been a problem in use over the past couple years. The lens should work in all modes. Aside from some zoom creep (common with old zooms), I think it's a pretty nice lens. A bit fuzzy wide-open, but pretty sharp when you stop it down a couple clicks. I like the rich saturated colors it produces. Be sure to get a hood for it if you haven't already. I'm using a 3-way collapsible rubber hood and it works well. Enjoy
11-15-2013, 08:21 AM   #7
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More importantly -- buy a cheap set of macro tubes and test any and all old lenses on those first. Way easier to take those off if it gets stuck (not to mention handy to carry in your pocket while browsing for old lenses to test if they have a K mount)

11-15-2013, 08:30 AM   #8
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QuoteOriginally posted by narual Quote
More importantly -- buy a cheap set of macro tubes and test any and all old lenses on those first. Way easier to take those off if it gets stuck (not to mention handy to carry in your pocket while browsing for old lenses to test if they have a K mount)
It wouldn't get stuck on tubes because they don't have the autofocus screwdrive. It also won't tell you anything about the oversized aperture lever shield found on many old lenses, since they don't have SDM/PZ contacts either. There are expensive teleconverters that have these features though. Carrying an extension tube or cheap 2x teleconverter for compatibility checking is a good idea though, a lot of bayonet mounts look alike to the untrained eye.
11-15-2013, 08:35 AM   #9
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Hi,

good suggestions about the tubes and teleconverters!

I mounted the lens and it works fine. Thanks for all the suggestions and quick replies.

The lenses purple fringes like there was no tomorrow wide open, but is indeed pretty good stopped down. And speaking of the zoom creep, yup. it's definitely there.
11-15-2013, 08:42 AM   #10
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Here's a shot from earlier this year, taken with a K10D, 135mm at f/8 (slight crop)

11-15-2013, 10:39 AM   #11
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QuoteOriginally posted by elliott Quote
It wouldn't get stuck on tubes because they don't have the autofocus screwdrive. It also won't tell you anything about the oversized aperture lever shield found on many old lenses, since they don't have SDM/PZ contacts either. There are expensive teleconverters that have these features though. Carrying an extension tube or cheap 2x teleconverter for compatibility checking is a good idea though, a lot of bayonet mounts look alike to the untrained eye.
Ah, sorry. My cheapo Nikon-mount tube set does, and my K-mount Vivitar macro-focusing teleconverter does, so I assumed the cheap Pentax ones might at minimum have the screw drive connection. The only tubes I have right now for my Pentax are the ones that came with an old M42 Takumar.
11-15-2013, 03:47 PM   #12
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I had some time to snap a few shots with this lens. It's pretty good. The contrast is nice, it is sharp from F5.6 onwards and is pretty easy to focus, even on slow-moving subjects. A very good deal at $25 I paid for it. I attached a couple of 100% crops from the edge and the center, respectively. They are unedited jpgs, although taken at ISO1600, so you will see some detail smearing.

My overall impression is that it sits between the kit lens (18-55mm WR) and the 16-45mm in terms of image quality.

Last edited by rrstuff; 02-03-2014 at 12:15 AM.
11-15-2013, 03:59 PM   #13
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QuoteOriginally posted by narual Quote
Ah, sorry. My cheapo Nikon-mount tube set does, and my K-mount Vivitar macro-focusing teleconverter does, so I assumed the cheap Pentax ones might at minimum have the screw drive connection. The only tubes I have right now for my Pentax are the ones that came with an old M42 Takumar.
None of the Vivitar Macro Teleconverters have any focus capabilities, but some have A contacts for exposure. Cheap tubes don't even have aperture connections in them. I don't know that much about Nikon, but I doubt any that allow auto focus are cheap.
11-15-2013, 04:52 PM   #14
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QuoteOriginally posted by elliott Quote
None of the Vivitar Macro Teleconverters have any focus capabilities, but some have A contacts for exposure. Cheap tubes don't even have aperture connections in them. I don't know that much about Nikon, but I doubt any that allow auto focus are cheap.
Sorry, that's right, the teleconverter just has the aperture control thing. But my Nikon tubes most definitely have autofocus, both with screw drive and internal focus lenses. Maybe "cheap" isn't the best word for them though… it was a bit under $50 for the set.
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