Hello Guys,

My loved Sigma 105mm F2.8 EX macro is for sale now. As I am planning buying new macro lens this one will need to find a new home.

The lens is sold with both rare and front caps, hood (never used), case and box. The lens is in good condition without any damage, no scratches on optics and there seems to be no dust on the inside. I used it on my K10D with manual focus most of the time as AF is quite slow and sometimes real pain to use for macro work.

The price I am asking for is £250.
I will despatch to UK via Next Day Special Delivey or DHL after receiving payment. I will not charge for postage.
Bank transfer will do OK.

Feel free to ask any questions.

Hello Cedrid,

First download some focus adjustment chart and print it.
http://www.k10dbook.com/newchart.pdf

Usefull article:
http://pentaxdslrs.blogspot.com/2008/06/part-1-autofocus-adjustment-for-pentax.h...

I did my focus adjusting thanks to these instructions (THEY WORKED WITH K10d firmware 1.10 - It is no longer available on Pentax site as they replaced it by 1.11)


Pentax DSLR focus correction

If your Pentax *istDL v1.03, *istDL2, *istDS v2.02, *istDS2 v1.02, K100D v1.02, K110D v1.02 or K10D v1.10 is not focusing right, there's remedy for your camera that comes with newest firmware update. Get your latest firmware update first from the http://www.pentaximaging.com/customer_care/software_firmware?sfFlag=f and then follow the steps below. Prior to changing mode to debug, I switched to central AF point. It's easier to see what you're focusing on. Grid value on the following examples - 0.1 inches (2.54mm). Photographed at 45° angle, a step of the ruler = 5um AF correction.

K10D series DEBUG STEPS

1. Your K10D' firmware version must be 1.10.

2. Test shot for focus trouble.

3. Turn the camera OFF.
While pressing [PLAY]+[OK], Turn the camera ON.
You can see firmware version on LCD screen.

4. Firmware version is appeared,
then press [Fn]->[Fn]->[INFO]->[MENU] within 5 seconds.
You get service menu!!!

5. by pressing [right key],change DEBUG MODE [DIS] to DEBUG MODE [EN].
then press [OK].
(save and LCD will be black out)

6. Press [MENU] and go to SETUP tab.





then, Press [^Up key], you can see TEST MODE.

7. Select AF TEST menu. now you have AF correction menu.
If you have Front-focusing, reduce the value.
If you have back-focusing, increase the value.
after adjust some value, press [OK] and quit out of setup menu.

8. TEST for focus, find out that focus is correct.
(repeat this from 6 for correct focus.)
9. Go to service menu(step 3,4).
change DEBUG MODE [EN] to DEBUG MODE [DIS].
then press [OK]. (save and LCD black out)

I used ruler photographed from macro distance at 45° angle. Autofocused precisely on a 4.5 line (maybe a little above. Picture below comes with corrected AF point, picture above appear backfocused. If your camera is front-focusing, reduce the value, if it's backfocusing - increase the focus correction value.


Disclaimer - I cannot vouch for the accuracy or inaccuracy of this - any use is entirely at your own risk.

THANKS A LOT TO WHOEVER, IT HELPED IN MY CASE.

I am using Giottos 9351B and normally take it everywhere. The only problem when flying is its weight (3kg is a lot when trying to fit into 15kg limit ) and it hardly fits into my suitcase (64cm + head). Otherwise I am extremely happy with it.