Spad

Joined: 20th July 2008

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Spad
I have a K20D converted to 650nm IR.

This week I decided to try my Sigma EX DC 10-20mm f3.5, Pentax DA☆ 16-50mm & 50-135mm on it, and discovered an issue.

The images look like a film of vaseline has been applied to the lenses! They don't look out of focus.... just hugely soft.

I did find a compatibility list on the "other" Pentax site. These 3 were on it for the K20D! I have tried adjusting the focus but to no avail.

Any help would be muchly appreciated!

Comment by Spad posted on One for the techno wizards! at 14/08/2025 - 11:53

Spad
If that's a good price... then someone on fleabay got an utter bargain.... one went for 250 quid!!!

Comment by Spad posted on SMC 31mm Limited for £400 (Norwich) at 06/08/2025 - 13:12

Spad
Good set!

Comment by Spad posted on County Cork - Ballycotton harbour and lighthouse at 05/08/2025 - 15:54

Spad
Is your super power that you see everything in macrovision???

Great set but no 1 tweaks my tinkle

Comment by Spad posted on A Few Seedy Things at 05/08/2025 - 12:46

Spad
Good because I just sold it

Comment by Spad posted on FS - Sigma EX DG Macro 105mm F2.8 at 04/08/2025 - 21:34

Spad
£90 inc RM SD anyone?

Comment by Spad posted on FS - Sigma EX DG Macro 105mm F2.8 at 04/08/2025 - 19:57

Spad
£100 inc delivery?

Comment by Spad posted on FS - Sigma EX DG Macro 105mm F2.8 at 03/08/2025 - 15:41

Spad
No offers????

Comment by Spad posted on FS - Sigma EX DG Macro 105mm F2.8 at 03/08/2025 - 12:19

Spad
Somebody buy this!! It's a great lens!!! I use one of these for doing star trail images

Comment by Spad posted on FS: Sigma 10-20mm F3.5 EX DC SLD, Boxed - Excellent at 03/08/2025 - 12:18

Spad
Here are images....

Clear Optics and with original Sigma caps. Also comes with a Hoya Pro Digital UV filter and neoprene pouch.

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Comment by Spad posted on FS - Sigma EX DG Macro 105mm F2.8 at 02/08/2025 - 11:56

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