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For Sale: SDM to Screwdrive Conversions
Listed: 01-11-2016, 07:27 PM

PentaxForums.com Marketplace Listing

Item for Sale
SDM to Screwdrive Conversions

Asking Price
40.00 USD

Item Location
Mint Hill, NC (United States)

Item Description
As a service to fellow Pentax Forum users and with special permission from Adam I am happy to announce that I am available to convert failed SDM lenses to Screwdrive. I am only charging $40 at this time for lenses that I know how to convert. This is merely to cover my time and effort involved in tracking and sending packages and the time required to perform the conversion. The actual conversion is not hard and I encourage those willing to do this for themselves to do so but for those who want a bit of help - I'm offering this service.

The service includes:
Test Lens prior to conversion to verify that screwdrive is functional.
Backup LENSEEP.LNS file as is.
Modify a copy of this file to have screwdrive configuration.
Load modified file into the lens and test on an SDM capable body.
Return lens postage paid by owner.

Optionally: Email backup and modified files to the owner.


I have successfully converted all of these lenses:
DA* 16-50
DA* 50-135
DA* 200
DA* 300

I am unable to convert the DA* 60-250. There are no known methods for this conversion since the method that works for the other lenses is unreliable on this lens.

An example converted 16-50:



Please NOTE Lenses shipped to me without insurance that are lost are not my responsibility. I strongly suggest using a method with tracking and insurance but that is entirely up to you. My return postage will be based on your explicit instructions and I will not be responsible for lost items. I encourage the use of tracking and insurance.

I STRONGLY recommend that you include a letter inside the package identifying your Pentax Forums ID, the email you wish to be billed at and a contact phone number as well as full address. Ideally the letter should contain your address and mine just in case the label is lost for any reason. Finally if you include your postage instructions (insurance amount, signature required) it will make it easier. You should include not only an email for contact but also the specific email for me to send a paypal invoice to for payment.

Shipping Destinations
United States (Others considered on request)

Shipping Charge
Paid by Lens Owner

Shipping Services
USPS, UPS

Accepted Payment Types
PayPal

Return Policy & Additional Details
If I am unable to convert the lens I will not charge for the service. Lens owner is still responsible for return shipping.

Please send me a private message if interested in the service!

Last edited by UncleVanya; 05-07-2020 at 02:02 PM.
Views: 47,560
02-09-2021, 09:58 PM   #271
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Latest satisfied customer had a DA* 300 and a 200 converted. Send me your shelf bound lenses and I will set them free!

02-17-2021, 10:39 PM   #272
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Thank you so much for your help with my DA* 50-135 conversion!
02-18-2021, 07:23 AM   #273
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QuoteOriginally posted by corvin Quote
Thank you so much for your help with my DA* 50-135 conversion!
Happy to help. Now get out and shoot with that former shelf queen!
03-12-2021, 06:27 PM   #274
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Hey, new member here
Do you still convert sdm to screwdrive

03-12-2021, 06:48 PM   #275
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QuoteOriginally posted by Isanchez1981 Quote
Hey, new member here
Do you still convert sdm to screwdrive
I do. Send me a private message if you want me to convert a DA* 16-50 f2.8, DA* 50-135 f2.8, DA* 200 f2.8,DA* 300 f4. Those are the only lenses that I am able to convert.
03-14-2021, 11:38 AM   #276
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Sent PM for your services.
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