Have I just go a bargain?

Spad
Posted 12/06/2025 - 11:05 Link
Just bought a Pentax SMC Pentax-DA* 50-135mm f/2.8 ED SDM from MPB for £180 in excellent condition....

Seemed like a good goid price to me... was it?
Edited by Spad: 12/06/2025 - 11:06
Lubbyman
Posted 12/06/2025 - 11:35 Link
If it really is in excellent condition... then it sounds good to me.

Something for the sunset panoramas?

Steve
Spad
Posted 12/06/2025 - 11:46 Link
Lubbyman wrote:
If it really is in excellent condition... then it sounds good to me.

Something for the sunset panoramas?
Steve
Thanks for that!

Not just sunsets.... astro too!
Edited by Spad: 12/06/2025 - 11:49
1stEverPentax
Posted 12/06/2025 - 23:46 - Helpful Comment Link
Sounds a great price Spad.

They've suddenly become exceptional value for money.

Worst case scenario...SDM failure out of warranty...can convert to screw drive or in my case i'd just use it as a manual focus lens. Speaking of which I've noticed manual focus on my copy is very slightly sharper than AF at 135 end and about 25m distance...I might need to make an adjustment to the focus...front or back.

Image quality is excellent though.
Edited by 1stEverPentax: 12/06/2025 - 23:46
Spad
Posted 13/06/2025 - 14:43 Link
No itnis not a bargain....

AF is shafted.....

Anyone know how much a repair is??
Edited by Spad: 13/06/2025 - 14:44
Defragged
Posted 13/06/2025 - 15:34 Link
Spad wrote:
No itnis not a bargain....

AF is shafted.....
Sounds all to familiar with purchases from MPB. People unload their crap, MPB fail to do any proper testing and some innocent punter - in this case you Spad, ends up with a tale of woe.

It could possibly be as 1st Ever Pentax alluded to above; SDM failure in which case convert it to screw drive or use manual focus , or, return it and get your dosh back.
Good luck.
C.O.L.B.A.S victim
(Compulsive Obsessive Lens Buying Addiction Syndrome)

What you need are lenses, more lenses, bigger lenses, better lenses, faster lenses, vintage lenses and when you have these, your pictures will be perfect!
Spad
Posted 13/06/2025 - 16:19 Link
Defragged wrote:
Spad wrote:
No itnis not a bargain....

AF is shafted.....
Sounds all to familiar with purchases from MPB. People unload their crap, MPB fail to do any proper testing and some innocent punter - in this case you Spad, ends up with a tale of woe.

It could possibly be as 1st Ever Pentax alluded to above; SDM failure in which case convert it to screw drive or use manual focus , or, return it and get your dosh back.
Good luck.
Me is thinking conversion to screw drive...
Jonathan-Mac
Posted 16/06/2025 - 13:15 Link
Anyone who buys a DA* SDM lens, regardless of price or apparent condition, needs to bear in mind that it will likely need multiple repairs or conversion to screw-drive. That needs to be factored into the purchase - are you willing to spend the additional money or time.
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses
richandfleur
Posted 16/06/2025 - 23:06 Link
Jonathan-Mac wrote:
Anyone who buys a DA* SDM lens, regardless of price or apparent condition, needs to bear in mind that it will likely need multiple repairs or conversion to screw-drive. That needs to be factored into the purchase - are you willing to spend the additional money or time.
Does that include the 300 f4?
Jonathan-Mac
Posted 17/06/2025 - 12:14 Link
richandfleur wrote:
Jonathan-Mac wrote:
Anyone who buys a DA* SDM lens, regardless of price or apparent condition, needs to bear in mind that it will likely need multiple repairs or conversion to screw-drive. That needs to be factored into the purchase - are you willing to spend the additional money or time.
Does that include the 300 f4?
The lenses I see people complaining about the most are the 16-50/2.8 and the 50-135/2.8, but that may be because they're more popular rather than that they're more prone to failure.
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses
Simonmac
Posted 17/06/2025 - 13:49 Link
I have bought two lenses from MPB....Tamron 17-50, massively decentred. They replaced, at my request, with Sigma 17-70, the HSM was failing. Jumble sale! I hope you get it sortedSoad.

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