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5 Days Ago - 1 Like   #1
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I would love to see a DA* 50-135mm f2.8 PLM lens!

Who else here would like to see Pentax upgrade the DA* 50-135mm f2.8 to a PLM focus system?
The new 16-50 PLM is outstanding! I would love to see that performance brought to the 50-135!

5 Days Ago - 1 Like   #2
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I would be surprised if they don't fix that lens with a PLM in the near future, similar to how they fixed the 16-50.
5 Days Ago - 1 Like   #3
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I wish they would bring PLM to almost all forthcoming telephoto lenses...

Though - what do I know? I don't have any PLM lens so far - only heard about its capabilities...
5 Days Ago - 1 Like   #4
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It wouldn't surprise me at all to see 50-135 given the same treatment as the 16-50. As FozzFoster mentioned though, it'll be on Pentax's timeline so who knows when it would be.

5 Days Ago   #5
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I've always thought of 50-135 as being a natural range on FF – normal to moderate telephoto – rather than on crop cameras. But the DA* 50-135 certainly does seem to garner a lot of support on PF.

I passed on a very cheap copy of the current version a couple of years ago, and don't regret it.

Last edited by Paul the Sunman; 5 Days Ago at 12:19 PM.
5 Days Ago - 1 Like   #6
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Agreed, Paul - FA 50-135 would be brilliant.

m43 has it pretty close with ~50-100, but $1700!!!
5 Days Ago - 3 Likes   #7
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The issue with PLM is that it really only works well with small focusing groups, however regardless this lens should definitely see an update, whether it's with a DC or SDM autofocus motor.

This may be a worthwhile read:
The 5 Lens Autofocus Drive Types Explained - Articles and Tips | PentaxForums.com


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5 Days Ago   #8
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I'm sure that this will happen,
question is when?
5 Days Ago   #9
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The 11-18 range was missing and the 16-50 is the most versatile and common fov for zoom. I imagine they won't be in the same hurry for 50-135 unless the optics are in dire need of upgrade. (I know very little about the existing lens)
5 Days Ago   #10
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My DA* Star 50-135mm (converted to screwdrive) is one of my workhorse lenses. I've got the autofocus calibrated precisely and it produces great images on my K-3 Mark III. Yes, it's a little noisy when focusing, but I'm usually out on my own so it's not a problem. Sort of reassuring, actually: When the screwdrive stops, I know the camera has locked on to the target.

So, if a new PLM version were to be produced, would I buy it? Hard to say -- it would depend on the price. At the moment, I don't think I'd spend $1,500 to replace my good ol' 50-135 non-SDM.

- Craig
5 Days Ago   #11
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QuoteOriginally posted by c.a.m Quote
My DA* Star 50-135mm (converted to screwdrive) is one of my workhorse lenses. I've got the autofocus calibrated precisely and it produces great images on my K-3 Mark III. Yes, it's a little noisy when focusing, but I'm usually out on my own so it's not a problem. Sort of reassuring, actually: When the screwdrive stops, I know the camera has locked on to the target.

So, if a new PLM version were to be produced, would I buy it? Hard to say -- it would depend on the price. At the moment, I don't think I'd spend $1,500 to replace my good ol' 50-135 non-SDM.

- Craig
I would definitely buy it ! The reason I don't purchase the current 50-135 is because of its reputation with bad AF motors. The 50-135 mm is the equivalent of a 70-200 mm lens on full frame camera, therefore perfect for weddings and events.
5 Days Ago   #12
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QuoteOriginally posted by Paul the Sunman Quote
I've always thought of 50-135 as being a natural range on FF normal to moderate telephoto rather than on crop cameras.
50-135 on crop is pretty much the beloved 70-200 on FF, Paul!
4 Days Ago - 1 Like   #13
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I'm surprised that the 21mm lens arrived so soon and it makes me feel encouraged that new lenses will arrive sooner than in the recent past.
4 Days Ago - 1 Like   #14
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QuoteOriginally posted by FozzFoster Quote
I would be surprised if they don't fix that lens with a PLM in the near future, similar to how they fixed the 16-50.
That is what I am hoping for.
4 Days Ago   #15
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QuoteOriginally posted by Adam Quote
The issue with PLM is that it really only works well with small focusing groups, however regardless this lens should definitely see an update, whether it's with a DC or SDM autofocus motor.
I wonder if using multiple PLM motors is just a technical challenge, or thoroughly protected by patents.
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