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11-23-2021, 11:42 PM   #1
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who fixes lenses besides Precision

Hi, I have a fa77 that won't focus (ring doesn't turn all the way) and a couple lenses that would be good to see if the decentering can be fixed. Also a da35 that won't focus to infinity. Not upset, really, the 77 and the decentered lenses were used a LOT and traveled frequently and the 35 was annodized and I didn't send it back to get adjusted. But, I'd really like to see these lenses work...

Not sure if the DA12-24 and DFA 24-70 need special equipment to fix the decentering though...

Anyways, if there are some folks that are good at this kind of work, I'd love to see if they are available.

Thanks,
Mike

11-24-2021, 12:13 AM   #2
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QuoteOriginally posted by mike.hiran Quote
Hi, I have a fa77 that won't focus (ring doesn't turn all the way) and a couple lenses that would be good to see if the decentering can be fixed. Also a da35 that won't focus to infinity. Not upset, really, the 77 and the decentered lenses were used a LOT and traveled frequently and the 35 was annodized and I didn't send it back to get adjusted. But, I'd really like to see these lenses work...

Not sure if the DA12-24 and DFA 24-70 need special equipment to fix the decentering though...

Anyways, if there are some folks that are good at this kind of work, I'd love to see if they are available.

Thanks,
Mike
There's a list here:
Pentax Repair Facilities (Wordwide listing) - PentaxForums.com

Eric may be able to help with the 77mm. As for the decentering, it may be best to use Precision for that.

Adam
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11-24-2021, 07:20 AM - 1 Like   #3
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I have had good luck with

https://phototronic.biz/

he is in Topeka KS

I would recommend calling him to see what he thinks he might be able to do

(785) 233 0231
11-24-2021, 11:24 PM   #4
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Specialized equipment is needed to repair decentering.

11-25-2021, 12:31 AM   #5
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The problem is outside of needing specialized equipment is that Ricoh will only sell parts to Precision. Precision will not sell parts. So if the repair needs parts you either have to scrounge for parts on the used market or send the lens to Precision. And many times Precision will send the lens to Japan for the parts and repair.
05-30-2022, 09:18 AM   #6
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So I dropped my 50mm 2.8 macro :-( , and notice now that when I turn the focus ring, the barrel doesn't move evenly when I turn it. On camera, the focusing motor tends to warble a little bit, as it moves the barrel. Precision camera's site quoted $300 for repair, but that doesn't sound right, considering the price of the lens.

I haven't shot any pics with it yet after the fall. I'm assuming that with the additional force needed to turn the focusing ring that I'll use more battery power. Don't want to risk damaging the motor on my KP though (if that's a possibility).

Does anyone know if the repair estimates are accurate? Could I damage my camera if I continue using the lens as is?

(Note to self, always double check camera pack to make sure everything is zipped up, Pentax lens pouches are crap for protecting lenses)
05-30-2022, 09:24 AM   #7
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QuoteOriginally posted by WI_KP Quote
So I dropped my 50mm 2.8 macro :-( , and notice now that when I turn the focus ring, the barrel doesn't move evenly when I turn it. On camera, the focusing motor tends to warble a little bit, as it moves the barrel. Precision camera's site quoted $300 for repair, but that doesn't sound right, considering the price of the lens.

I haven't shot any pics with it yet after the fall. I'm assuming that with the additional force needed to turn the focusing ring that I'll use more battery power. Don't want to risk damaging the motor on my KP though (if that's a possibility).

Does anyone know if the repair estimates are accurate? Could I damage my camera if I continue using the lens as is?

(Note to self, always double check camera pack to make sure everything is zipped up, Pentax lens pouches are crap for protecting lenses)
I would be careful about using the AF as it does sound like it would place unnecessary wear on the camera.

Given that the lens can be bought new for under $300 at times, it sounds like a repair isn't economical. You could always try getting a quote from another service provider listed in the sticky, though.


Adam
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05-30-2022, 10:08 AM   #8
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QuoteOriginally posted by Adam Quote
I would be careful about using the AF as it does sound like it would place unnecessary wear on the camera.

Given that the lens can be bought new for under $300 at times, it sounds like a repair isn't economical. You could always try getting a quote from another service provider listed in the sticky, though.
Thanks so much for the super fast reply Adam! That all makes sense. I can at least console myself with the fact that it wasn't the camera section I had left unzipped. If the lens still functions in manual mode it won't be a total loss. For sure adding some mods to the pack to mitigate future human error. Grrr...
06-17-2022, 05:19 PM   #9
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QuoteOriginally posted by WI_KP Quote
Thanks so much for the super fast reply Adam! That all makes sense. I can at least console myself with the fact that it wasn't the camera section I had left unzipped. If the lens still functions in manual mode it won't be a total loss. For sure adding some mods to the pack to mitigate future human error. Grrr...
So I finally got a replacement copy of the 50mm 2.8 macro. Unfortunately the manufacturer box was shipped in a bubble wrap envelope instead of a shipping box. UPS did the thing they do with a package like this (oops!), and there were a few dings in t he Pentax box's corners. The lens seems to work fine (though the pics have a different, more technical feel - do individual lenses have a personality(?)).

Something I noticed when I mounted the lens was that there was more turn resistance when mounting on my KP than my first copy. I don't have this experience on my 18-55 or 55-300 either, the turn resistance seems very consistent. Does Pentax have a tolerance for how 'tight' the lens mount is or could this indicate some structural damage that isn't apparent to my eye?

I'm leaning towards a return/exchange, in case the lens has some hairline fracture that may have shifted the mount slightly, but wanted to check on here first.
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