Do I need an adaptor for Pentax Fit Tamron 200mm F3.5 lens to K 3 ii ?


Magicman

Link Posted 28/04/2019 - 13:45
The item is being listed on ebay so bidding closes 29th . Looking at this for low cost addition , if I can clarify from a forum members more experienced legacy lens users , what if any adaptor needed . Its a Tamron Adaptall 1 according to my research ( period 1973/76 ) with BARR multi coating.

Any help would be gratefully welcome

Thanks

Patrick
Pentax : K5 iis K3 ii : M 28 mm f 3.5 M 50 mm f 1.7 K 135 f2.5 M 200 mm f4 , DA 16 - 85 mm & 55- 300 mm
Fuji : XT20 x 2 , XF 23 mm f2 56 mm f1.2, XC 16 -50 mm & 50 - 230 mm & 8mm Samyang
Lumix : LX100

pschlute

Link Posted 28/04/2019 - 14:17
Looks like a M42 screw mount to me. You will need a K -screwmount adapter. Pentax make one or there are cheaper copies. I suggest the former.

That lens has a pin sticking out by the mount threads. I would want to check with other users if that might present a problem before putting on a camera.

Check out here too https://www.pentaxforums.com/userreviews/

You the lens will stop down as you turn the aperture ring.....the viewfinder will darken. You can use Manual or Av mode with that kind of lens.

Never used one myself.
Peter



My Flickr page
Last Edited by pschlute on 28/04/2019 - 14:19

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bforbes

Link Posted 28/04/2019 - 14:22
As it stands I think you would need an M42 to Pentax K mount adaptor. There are Adaptall mounts that would take you straight to Pentax K
Barrie
Too Old To Die Young
.
Pentax K1 K5-IIS K-01 K20D A50/2 A50/1.7 DA10-17 DA18-250 DA18-135 DA18-55 DA300 DA40 DA50-135 DA50-200 DA55-300 DA70 F35-70 DFA150-450 FA20-35 FA100 FA135 FA35 FA28 FA43 FA50 FA77 K55/1.8 M135/3.5 M200/4 M28/3.5 M28/2.8 M40/2.8 Q 01 02 MX-1 I-10 Sigma 15 24 105 180 8-16 10-20 17-35 17-50/2.8 24-70 400/5.6MF Tamron 70-200/2.8 17/3.5MF 24/2.5MF 28/2.5MF 90/2.5MF


http://www.pentaxphotogallery.com/artists/barrieforbes

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pschlute

Link Posted 28/04/2019 - 14:35
That lens seems to get good reviews. Personally I would go for a Pentax lens to avoid the adapter malarkey.

If you want a cheap manual focus/exposure lens the M series 200mm f4 is a good option https://www.ebay.co.uk/itm/Pentax-M-series-200mm-F4-prime-telephoto-lens-Crystal...

This is what the M 200 f4 can do on digital.........



Peter



My Flickr page

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Magicman

Link Posted 28/04/2019 - 15:06
Thanks everyone.

Very kind & helpful advices

Will keep my eye open for the Pentax M- 200 mm f 4 or Macro as suggested by Peter to keep things simple.

Patrick
Pentax : K5 iis K3 ii : M 28 mm f 3.5 M 50 mm f 1.7 K 135 f2.5 M 200 mm f4 , DA 16 - 85 mm & 55- 300 mm
Fuji : XT20 x 2 , XF 23 mm f2 56 mm f1.2, XC 16 -50 mm & 50 - 230 mm & 8mm Samyang
Lumix : LX100
Last Edited by Magicman on 28/04/2019 - 15:07

Chrism8

Link Posted 28/04/2019 - 15:57
pschlute wrote:
That lens seems to get good reviews. Personally I would go for a Pentax lens to avoid the adapter malarkey.

If you want a cheap manual focus/exposure lens the M series 200mm f4 is a good option https://www.ebay.co.uk/itm/Pentax-M-series-200mm-F4-prime-telephoto-lens-Crystal...

This is what the M 200 f4 can do on digital.........



That's a cracking image Pete
Chris

www.chrismillsphotography.co.uk

" A Hangover is something that occupies the Head you neglected to use the night before".

-------------------------------------------------------------
K1 - Sigma 85mm F1.4, Pentax 150 -450 F4.5 / 5.6, Pentax FA 24 - 70 F2.8

Sigma 100-300 F4, Samyang 14mm F2.8, Sigma 70-200 F2.8,

K5iis - Sigma 17 - 70 F2.8, Sigma 70 - 300 F3.5/F5.6, Sigma 18 - 200 F3.6 / F4.5.

cbrog

Link Posted 28/04/2019 - 16:12
Just as a postscript: Unless I am mistaken the lens you were considering is a Tamron CT200 (Adaptall 2) - I have one in front in me. What you really need is the correct Tamron Adaptall 'adaptor', mine is marked 'for Pentax K M'. For my sins I also have the CT135 and CT300, the adaptor is shared between the three..All work on all K mount bodies albeit as purely manual lenses. If in good condition they are reasonable but not stellar performers. A much better and cheaper 200 is the Chinon f3.3 200mm (which is a screwmount) or the much rarer CPH Phase 2 f3.3 mm. (They are in fact the identical glass in different bodies).

Roger.
Last Edited by cbrog on 28/04/2019 - 16:14

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cbrog

Link Posted 28/04/2019 - 16:54
Correction: should read CPC Phase 2

pschlute

Link Posted 28/04/2019 - 18:10
Chrism8 wrote:


That's a cracking image Pete

Thank you Chris. It was taken over two years ago with the Pentax M 200mm f4 on my K1. In my (biased ) view it is a cracking lens.

Luckily Patrick's post gave me just the excuse I needed to post yet another picture of one of my hounds . Little Ripley is four now, where did that time go ?
Peter



My Flickr page
Last Edited by pschlute on 28/04/2019 - 18:12

JAK

Link Posted 28/04/2019 - 18:22
I agree with the suggestion that the lens needs a K mount Adaptall adapter
eg https://www.ebay.co.uk/itm/Official-TAMRON-JAPAN-Adaptall-adapter-Pentax-K-PK-A-...
This one will work with the in camera aperture setting

or this one https://www.ebay.co.uk/itm/Official-TAMRON-JAPAN-Adaptall-2-adapter-Pentax-K-PK-...
which will be fully manual (green button stop down metering.)
John K

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Magicman

Link Posted 28/04/2019 - 19:27
pschlute wrote:
Chrism8 wrote:


That's a cracking image Pete

Thank you Chris. It was taken over two years ago with the Pentax M 200mm f4 on my K1. In my (biased ) view it is a cracking lens.

Luckily Patrick's post gave me just the excuse I needed to post yet another picture of one of my hounds . Little Ripley is four now, where did that time go ?

Indeed its a super image Peter it did it for me !!

I made a bid and bought the one you flagged today for a great price too. Thanks again I appreciate the steer from those members better able to judge the legacy lens performers & its a learning curve i am on
Pentax : K5 iis K3 ii : M 28 mm f 3.5 M 50 mm f 1.7 K 135 f2.5 M 200 mm f4 , DA 16 - 85 mm & 55- 300 mm
Fuji : XT20 x 2 , XF 23 mm f2 56 mm f1.2, XC 16 -50 mm & 50 - 230 mm & 8mm Samyang
Lumix : LX100

Magicman

Link Posted 28/04/2019 - 20:10
cbrog wrote:
Just as a postscript: Unless I am mistaken the lens you were considering is a Tamron CT200 (Adaptall 2) - I have one in front in me. What you really need is the correct Tamron Adaptall 'adaptor', mine is marked 'for Pentax K M'. For my sins I also have the CT135 and CT300, the adaptor is shared between the three..All work on all K mount bodies albeit as purely manual lenses. If in good condition they are reasonable but not stellar performers. A much better and cheaper 200 is the Chinon f3.3 200mm (which is a screwmount) or the much rarer CPH Phase 2 f3.3 mm. (They are in fact the identical glass in different bodies).

Roger.

Hello Roger

You the Tamron man to call then without doubt !

I did a few years ago , as my first non kit lens for a K 5 ii , buy a new SP 70-200 mm but never got any joy from it. Probably because it was too much to master as a new shooter & for sure heavy as heck on my travels. So sold it pretty soon after but also I did buy to add a tele convertor from a PF member which has never been used since & seems a waste not to recycle. Any chance , you have them its Tamron teleconvertor model F 2X Pz -AF pz BBAR MC7 ?

Otherwise, might sell it with a few other items I now wish to clear out

Thanks again for your feedback

Patrick
Pentax : K5 iis K3 ii : M 28 mm f 3.5 M 50 mm f 1.7 K 135 f2.5 M 200 mm f4 , DA 16 - 85 mm & 55- 300 mm
Fuji : XT20 x 2 , XF 23 mm f2 56 mm f1.2, XC 16 -50 mm & 50 - 230 mm & 8mm Samyang
Lumix : LX100

JAK

Link Posted 28/04/2019 - 20:12
Another vote for the M series 200mm f4


One of my first Pentax DSLR photos (K100D) from June 2009 of a tree sparrow (taken through a window).
John K
Last Edited by JAK on 28/04/2019 - 20:15

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pschlute

Link Posted 29/04/2019 - 15:48
Magicman wrote:

I made a bid and bought the one you flagged today for a great price too.

Good, you won't be disappointed.

In case you are not aware, use this lens in Manual exposure mode on your K3. Select the aperture you desire and press the green button. The lens will briefly stop-down to the selected aperture, and the camera will select a shutter speed. Then take your picture.

You can also use it in Av mode , but it will only use wide open f4, irrespective of your aperture selection. So Av mode is only really useful if you want to use f4

looking forward to some pictures.
Peter



My Flickr page

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JAK

Link Posted 29/04/2019 - 17:01
That Pentax 200mm will be better than the Tamron. Not because the Tamron is a bad lens but the Adaptall adaptors can lead to inconsistently exposed images. They were designed a long time before DSLRs arrived on the scene!
When you get your new lens have a good visual inspection of it to make sure the lens elements don't look cloudy due to fungus, oil or excessive dust. It was described as being free of those so check that it is. Also check that the lever that closes the aperture returns quickly. If it's sluggish it will lead to over exposed images and would require servicing to fix.
John K
Last Edited by JAK on 29/04/2019 - 17:05

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