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johnriley

Joined: 19th March 2002

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johnriley
It isn't slammed open and closed Stefan, it's a precision mechanism that can be easily knocked out of balance. In addition, it's a front surface mirror and the coating is also fragile.

Comment by johnriley posted on Dust on ,my focus screen at 07/05/2011 - 18:04

johnriley
If you want razor-sharp images, then the X90 will deliver that.

Generally, sharpening in-camera should be modest and the main sharpening done in Photoshop just prior to pushing the Print button.

Many digital photographers do over-sharpen their images.

Comment by johnriley posted on Issue regarding sharpness with the K10D at 07/05/2011 - 17:36

johnriley
Please only post once in one section on the same subject, otherwise the answers are split across the forum.

I'll lock this one now, so please refer to the other thread.

Comment by johnriley posted on Pentax 17mm fish eye (non AF) lens on DSLR cameras at 07/05/2011 - 16:07

johnriley
The most interesting thing here is the 35-70mm f4 lens, which is actually an excellent lens that can still be used on digital SLRs.

However, even that is in the £20 or so bracket these days. Maybe £20 if you're lucky for a mint P30 (P30n and P30T superceded it) and maybe £15 for the Tokina zoom.

You don't say where you are based, but this is the sort of kit I sometimes buy for a low price and then put the items separately on eBay. No fortunes to be made doing that, and you could do it yourself. The only difference would be that my description would be better as you have limited knowledge of the items, so the price you get could be lower.

Comment by johnriley posted on can anyone help me/ advise me at 07/05/2011 - 15:05

johnriley
There's some pretty inspiring stuff in there.

Comment by johnriley posted on Travel Photographer of the Year Slideshow at 06/05/2011 - 21:36

johnriley
The focusing screen is very soft plastic and should not be touched. The mirror mechanism is a very highly precise bit of engineering that should not be touched, lest it gets pushed out of position.

If the mirror isn't precisely in position your images will have a focus error.

This is one of the basic guidelines for handling any SLR or DSLR.

Comment by johnriley posted on Dust on ,my focus screen at 06/05/2011 - 20:31

johnriley
You don't use an Arctic Butterfly on focusing screens and mirrors. I have found holding the camera facing downwards spots in the viewfinder system can be removed easily with a rocket blower.

As regards the sensor, the built in dust removal system works most of the time and a rocket blower the rest. I have not physically cleaned a sensor on a DSLR, ever, and the first one I had was some time ago with the *istDS.

Comment by johnriley posted on Dust on ,my focus screen at 06/05/2011 - 18:59

johnriley
Rocket blower.

Comment by johnriley posted on Dust on ,my focus screen at 06/05/2011 - 18:07

johnriley
Interesting...I like the effect!

Comment by johnriley posted on When panos go bad! at 06/05/2011 - 17:03

johnriley
Welcome dave - Tri-X is probably the finest black and white film ever made. Gritty, sharp and wonderful in Paterson FX-39.

Comment by johnriley posted on Hello from the Sunny Potteries! at 06/05/2011 - 17:02

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