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11-15-2018, 08:28 AM   #1
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Adapting Pentax DA lenses to MFT systems

Hi, I'm looking for experience, negative or positive in adapting especially DA ltd lenses, 40 and 70, and the Tamron 90mm macro, and also the DA 35 AL plus a few manual Pentax lenses, to Olympus system.

Advise regarding the best adapter would also be welcomed...

11-15-2018, 10:19 AM - 1 Like   #2
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I use a couple of different adapters. Make sure you get one that has the "Open/Close" aperture control ring on it. Without that you have no aperture control at all. With it - you have continuous aperture without click stops. You will be guessing at what the aperture is unless you take some pictures of the aperture on a Pentax body and make a chart to help you preset the aperture.

I have one of these and it works fine:
amazon.com : Fotasy Pro Pentax DA K Mount lens to Micro 4/3 MFT System Camera Mount Adapter, with Aperture Control : Camera & Photo?tag=pentaxforums-20&

I would love to have one that was lighter to increase the usefulness of the DA primes.

---------- Post added 11-15-18 at 12:22 PM ----------

BTW - I use mine less than I probably should. I have a GX-1 rather than the GX-7 I started with. The GX-1 has no IBIS which hampers my use. The GX-1 also lacks good manual focus aids like focus peaking. The DA 70 in particular is a nice reasonably fast and sharp lens that should shine on M43. However I tend to use my m43 35-100 f4-5.6 for that focal length. I also have a Panasonic 42.5 f1.7 which limits the appeal of my DA 40. I have used my FA 31 and FA 77 once in a while and my DA* 200, DA* 60-250, FA* 300 - but these require serious effort to make them stable enough to function (think tripod).
11-15-2018, 10:17 PM - 1 Like   #3
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QuoteOriginally posted by UncleVanya Quote
I use a couple of different adapters. Make sure you get one that has the "Open/Close" aperture control ring on it. Without that you have no aperture control at all. With it - you have continuous aperture without click stops. You will be guessing at what the aperture is unless you take some pictures of the aperture on a Pentax body and make a chart to help you preset the aperture.

I have one of these and it works fine:
amazon.com : Fotasy Pro Pentax DA K Mount lens to Micro 4/3 MFT System Camera Mount Adapter, with Aperture Control : Camera & Photo?tag=pentaxforums-20&

I would love to have one that was lighter to increase the usefulness of the DA primes.

---------- Post added 11-15-18 at 12:22 PM ----------

BTW - I use mine less than I probably should. I have a GX-1 rather than the GX-7 I started with. The GX-1 has no IBIS which hampers my use. The GX-1 also lacks good manual focus aids like focus peaking. The DA 70 in particular is a nice reasonably fast and sharp lens that should shine on M43. However I tend to use my m43 35-100 f4-5.6 for that focal length. I also have a Panasonic 42.5 f1.7 which limits the appeal of my DA 40. I have used my FA 31 and FA 77 once in a while and my DA* 200, DA* 60-250, FA* 300 - but these require serious effort to make them stable enough to function (think tripod).
Thank you for the info, much appreciated. I'm thinking of getting the Olympus OM-D E-M10 III, but the pro lenses are quite expensive, and I don't want to sell my K5iis and limited gems, if possible. It just isn't fun anymore for me to take the weight on casual walks, especially as I plan a few more trips to foreign countries.
11-16-2018, 01:00 AM - 2 Likes   #4
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QuoteOriginally posted by altopiet Quote
I'm thinking of getting the Olympus OM-D E-M10 III,
An absolute FUN device,very capable,lots of features.

Make it compact with the Pano 12-32 and 35-100 both variable apeture.Cheap and sharp in good light.Oly 75-300mk ii...add the Pentax 110 primes and its a great lightweight kit.

11-16-2018, 01:13 AM - 2 Likes   #5
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QuoteOriginally posted by surfar Quote
An absolute FUN device,very capable,lots of features.

Make it compact with the Pano 12-32 and 35-100 both variable apeture.Cheap and sharp in good light.Oly 75-300mk ii...add the Pentax 110 primes and its a great lightweight kit.
We stay in a small town far from B&M stores, but I had the good fortune to visit a store in the city recently, and the first time held the Olympus, and am very impressed, even with the EVF, my first time seeing what the hype is all about. I can see MFT systems having a future, even if it might be only a niche market as a system for light weight travel.
11-16-2018, 06:32 AM - 1 Like   #6
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QuoteOriginally posted by altopiet Quote
Thank you for the info, much appreciated. I'm thinking of getting the Olympus OM-D E-M10 III, but the pro lenses are quite expensive, and I don't want to sell my K5iis and limited gems, if possible. It just isn't fun anymore for me to take the weight on casual walks, especially as I plan a few more trips to foreign countries.
I am maintaining two different systems, with different goals myself. On m43 I have a few nicer primes and some slow but compact and sharp zooms. My dad has the fast m43 zooms. I have used both, but my k-3 is my fast system so the fast m43 stuff isn't a huge benefit.

I can see how the limited lenses fit in with m43, but my line up on m43 does not mesh that well with my limited lenses. (8mm f8, 20mm f1.7, 30mm f2.8, 42.5mm f1.7, 14-42 PZ f3.5-5.6, 35-100 f4-5.6) realistically if I had an m43 with ibis I might used the DA70 or FA77 more on it.
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