Question about Pentax *ist DS Digital Camera

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Focusing screen question

Is anyone using a focus screen with micro prizm center ? I know Pentax does not sell one for DS but I've heard that you can modify from other Pentax model. Lately, I am using 2 primes most of times Takumar M 28 mm and Pentax A 50 mm. I like these primes for their sharpness and compact size. I really love the size of DS with these small primes. Only down side is that the manual focus with current focusing screen. I like the size and brightness but little difficult to focus in certain situation (low light). I am having good success with manual focus and throw away shots are minimal (little more than auto focus). I think if I have focusing screen like the one on ME super, it would be really great.

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Why install a screen with split image and microprism and then want it to show you the autofocusing sensor positions? Ok, I understand that you from time to time mount an AF lens. Good thing then that the AF sensor marks doesn't have anything to do with the screen used. The screen is a piece of plastic only and there is some other technical mumbo jumbo involved when it comes to superimpose those red squares. You install it following the directions supllied with the screen. There is a little pincett for holding the screen, there is a locking retaining clip that holds the screen at position and everything is pretty easy. In fact you should be able to find pictures and descriptions given here if you search for it. Also see any post by John Powers (racehorse...) for links to posts of interest.

Posted on Sep 08, 2005

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Pentax make three different screens for the D and DS. Go check their homesite, or do a search here. None of the Pentax oriinal screens has microprismes or split image. They are engraved in different ways.

Posted on Sep 08, 2005

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1 Answer

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The rack and pinion gear on the focuser for a meade ds 2000 telescope got stripped. I can't find replacement focuser .


You can possibly buy another focuser from Meade here:
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Orion Telescopes also sell focusers here:

http://www.telescope.com/control/telescope-focusers

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I had a similar challenge with my D, the difference being it back focussed, it only happened with one lens, my FA* 24/2.0. Strangely, after returning them both to Pentax, it turned out to be the body, not the lens, which was kind of bizarre! Eventually after 3 months of backwards and forwards with the body, Pentax replaced it with a new one. Everything is now fine (apart from 1 hot pixel, which I can cope with). I pursued the matter with politeness and accepted the delays, the staff at Pentax UK were MOST helpful, but tied by company rules that the repairs had to go back to Germany each time, which added probably 80% to the delays. I ran with film in my MZ-S and digital on my Fuji 602 (backup digicam) while it was being sorted. I must admit I'm considering adding another body, but will probably wait until the year Pentax decide to bring the out D replacement.

Sep 08, 2005 | Pentax *ist DS Digital Camera

2 Answers

Ist DS Locked up - non functioning


If you go to http://www.pentaximaging.com and click on the service link it will tell you how to send it back (in the United States). My camera had a focusing problem. It was there for almost seven weeks before it was returned. I am not sure how good their technicians are since three weeks after I got the camera back the autofocus quit working again. I ordinarily use manual focus, but no one else in the family does. I called Pentax to complain and was told to ship the camera back (again). Finally they agreed to put out a pick up order for the camera. I was told they would pick it up sometime next week. I expect I won't see the camera again until November and that the camera will have spent a significant time at Pentax during the warranty period.

Sep 08, 2005 | Pentax *ist DS Digital Camera

1 Answer

Flash problem


That is normal operation, if poped up, the flash fires rapidily in low light to assist the auto focus, on a plain white wall, it can't focus, see the manual on AUto Focus limitations.

Sep 08, 2005 | Pentax *ist DS Digital Camera

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