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

Magicman
Posted 28/04/2019 - 13:45 Link
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 : KP + K 5 iis : M 28 mm , M 50 mm , K 135 mm , DA F 100 mm , DA 12 - 24 mm DA 16 - 85 mm & DA 55- 300 mm .
Lumix : LX100
pschlute
Posted 28/04/2019 - 14:17 - Helpful Comment Link
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.
Edited by pschlute: 28/04/2019 - 14:19
bforbes
Posted 28/04/2019 - 14:22 - Helpful Comment Link
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
pschlute
Posted 28/04/2019 - 14:35 - Helpful Comment Link
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.........

Comment Image
Magicman
Posted 28/04/2019 - 15:06 Link
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 : KP + K 5 iis : M 28 mm , M 50 mm , K 135 mm , DA F 100 mm , DA 12 - 24 mm DA 16 - 85 mm & DA 55- 300 mm .
Lumix : LX100
Edited by Magicman: 28/04/2019 - 15:07
Chrism8
Posted 28/04/2019 - 15:57 Link
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.........

Comment Image

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 DFA 150 -450 F4.5 / 5.6, Pentax DFA* 24 - 70 F2.8

Samyang 14mm F2.8, Pentax DFA* 70-200 F2.8

K3iii + K3ii + K5iis converted to IR, Sigma 17 - 70 F2.8, Pentax 55 - 300 F4.5 / F5.6 PLM
cbrog
Posted 28/04/2019 - 16:12 - Helpful Comment Link
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.
Edited by cbrog: 28/04/2019 - 16:14
cbrog
Posted 28/04/2019 - 16:54 Link
Correction: should read CPC Phase 2
pschlute
Posted 28/04/2019 - 18:10 Link
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 ?
Edited by pschlute: 28/04/2019 - 18:12
JAK
Posted 28/04/2019 - 18:22 - Helpful Comment Link
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
Magicman
Posted 28/04/2019 - 19:27 Link
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 : KP + K 5 iis : M 28 mm , M 50 mm , K 135 mm , DA F 100 mm , DA 12 - 24 mm DA 16 - 85 mm & DA 55- 300 mm .
Lumix : LX100
Magicman
Posted 28/04/2019 - 20:10 Link
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 : KP + K 5 iis : M 28 mm , M 50 mm , K 135 mm , DA F 100 mm , DA 12 - 24 mm DA 16 - 85 mm & DA 55- 300 mm .
Lumix : LX100
JAK
Posted 28/04/2019 - 20:12 - Helpful Comment Link
Another vote for the M series 200mm f4
Comment Image

One of my first Pentax DSLR photos (K100D) from June 2009 of a tree sparrow (taken through a window).
John K
Edited by JAK: 28/04/2019 - 20:15
pschlute
Posted 29/04/2019 - 15:48 - Helpful Comment Link
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.
JAK
Posted 29/04/2019 - 17:01 - Helpful Comment Link
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
Edited by JAK: 29/04/2019 - 17:05

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