All Forum Comments
Comment by johnriley posted on focus on image at the nec at 17/12/2009 - 23:38
Comment by johnriley posted on OK - so what / who is a Pro ? at 17/12/2009 - 17:15
In particular, optical glass is very soft, so if you over-tighten the elements then you can actually distort the shape and ruin the quality of the lens. Also, how can you be sure the element is centred correctly?
If anyone told me they had dismantled and cleaned a lens, I certainly wouldn't buy it.
Comment by johnriley posted on M50f1.7 problem at 17/12/2009 - 11:56
Of course other lenses will have different curvatures, so the filter won't make any difference. The coatings are the same as the coatings of the Pentax lenses of the day.
Comment by johnriley posted on Ghostless filters at 17/12/2009 - 11:03
Comment by johnriley posted on Consistent colour with in a studio environment at 16/12/2009 - 08:29
However, we upgrade quite frequently these days, so it's less likely that the first owner will ever find out.
Comment by johnriley posted on Average lifespan of shutter, that is ... at 16/12/2009 - 08:28
However, get a good one and it will be excellent (on film at least) but the likelihood of getting a good one is relatively small.
Comment by johnriley posted on Industar 50mm f3.5 "pancake" - anyone have one? at 15/12/2009 - 22:02
Comment by johnriley posted on Latest Cashback Offer at 15/12/2009 - 21:58
The real way to check is to try it out on a firm tripod.
Comment by johnriley posted on Pigeon Posing in front of 80-320mm at 15/12/2009 - 17:38
Alternatively you could uninstall and reinstall the Pentax program and see if that does the trick.
Comment by johnriley posted on Pentax Photolaboratory 3 at 15/12/2009 - 12:28
