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02-14-2014, 08:57 AM   #1
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Pentax 645 300mm f/4 IF Manual Focus

Question: Did this lens ever have a tripod collar? I have this lens, and it is very, VERY sharp and contrasty, but it seems a lot of weight to hand off my 645D.

02-14-2014, 09:16 AM   #2
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Doesn't look like it.

SMC Pentax-A* 645 300mm F4 ED [IF] Reviews - 645 Telephoto Primes - Pentax Lens Reviews & Lens Database
02-14-2014, 09:23 AM   #3
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At least Pentax is consistent.

This makes one 300/4 lens in three different formats that is heavy and lacking a tripod mount. (K300/4 & 6X7 300/4 are the others)

Phil.
02-14-2014, 09:24 AM   #4
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No, it did not. But you can use a Manfrotto 293 Telelens support, which is quite useful with this lens (I had both lens and support until I decided that I did not use it very often). I agree that this lens is sharp, it is a gem, but the lack of the collar is a pity.
The FA 4 and 5.6 versions of the 300mm do have a tripod collar.


Last edited by Smolk; 02-14-2014 at 09:31 AM.
02-14-2014, 11:48 AM   #5
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QuoteOriginally posted by Smolk Quote
No, it did not. But you can use a Manfrotto 293 Telelens support, which is quite useful with this lens (I had both lens and support until I decided that I did not use it very often). I agree that this lens is sharp, it is a gem, but the lack of the collar is a pity.
The FA 4 and 5.6 versions of the 300mm do have a tripod collar.
Thanks people. I have the long lens cradle that Manfrotto makes, but was hoping for something a bit smaller.
02-15-2014, 01:40 AM   #6
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QuoteOriginally posted by Frank Armstrong Quote
Thanks people. I have the long lens cradle that Manfrotto makes, but was hoping for something a bit smaller.
with the size of the 300,400 and 600mm lense the 393 is about as small as you can get. it does a good job of protecting the lens to camera joint.
02-19-2014, 12:40 AM   #7
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I've said this a bunch of times in the past and I know it isn't a perfect solution but if the lens has a stationary part of the barrel that doesn't turn, something inbetween the aperture ring and the focus ring or whatever, you may be able to attach a telescope tube ring to it. One of these tube rings would be perfect. They hinge on one side and have a screw clamp on the other to make it snug, 1/4 inch threaded hole on the bottom for your lens plate.
02-28-2014, 02:25 PM   #8
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Hi Frank,

Have you looked into a long lens support 8 Inch Lens Support Package [LLSP1] - $90.00 : Hejnar Photo Store, Serving Your Professional Photography Needs?

I have not tried my 645 A* 300mm f/4 on it yet, but it works very well with my heavier and bigger lens - Sigma 120-300mm f/2.8. I have the Arca Swiss style plates on my 645N body (one each for vertical and horizontal). Flipping from vertical to horizontal can be a bit of a pain (other than just tilting the entire body+lens, but then you have to stoop a little lower or raise your tripod).

There is (or was very recently) an auction listing for this lens with a beefy tripod collar, but the seller is in Germany and they are asking quite a lot for it.

Yuri

QuoteOriginally posted by Frank Armstrong Quote
Question: Did this lens ever have a tripod collar? I have this lens, and it is very, VERY sharp and contrasty, but it seems a lot of weight to hand off my 645D.



Last edited by yurihuta; 02-28-2014 at 02:26 PM. Reason: still learning to spell apparently
03-01-2014, 01:09 AM   #9
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QuoteOriginally posted by Smolk Quote
No, it did not. But you can use a Manfrotto 293 Telelens support, which is quite useful with this lens (I had both lens and support until I decided that I did not use it very often). I agree that this lens is sharp, it is a gem, but the lack of the collar is a pity.
The FA 4 and 5.6 versions of the 300mm do have a tripod collar.
FA 5.6 does not have a tripod collar. It is so light it is not really needed either. That is the huge advantage to the 5.6 version is the light weight...

A long time ago somebody made a tripod collar that clamped onto the A* 300mm. I think it was kirk but could have been really right stuff. I don't think the is really a chance of finding it. These companies make some now for various Canon and Nikon lenses. If you could get an accurate diameter measurement of the barrel close to the aperture ring you might find one of these would work; might need a section of thin rubber to provide some grip like a section of bike tire inner tube...
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