Comments made by johnriley - Page 1332

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Is it April Fools Day and we haven't noticed? Still, at least somebody in business has a sense of humour...

Comment by johnriley posted on You couldn't make this up at 30/11/2010 - 00:05

I like these, very effective indeed.

Comment by johnriley posted on In the Snow with a K5 at 29/11/2010 - 23:36

No mowog, I think I'm psychic and have written all tomorrow's posts already...it saves time.

Comment by johnriley posted on Shock Title fight result! at 29/11/2010 - 20:00

Quote:
Ha-ha!.. Good ol' John!.. Even if waterboarded, he wouldn't admit that a Pentax lens was bettered in any way. Even in just one, not very important regard, in a rough and ready, very unscientific test like this one.
Did Pentax ever have a more faithful desciple!

Ha indeed! Apparently you've also dismatled part of this damaged Pentax lens, so the test is already looking weaker....

FWIW, the 50mm f1.4 is not my favourite lens, I much prefer the f1.7 version, but it's the one that's survived.

Testing is a tricky thing to do to make it meaningful.

Comment by johnriley posted on Shock Title fight result! at 29/11/2010 - 19:45

All sensors generate heat and the longer they are active the more heat they generate. Heat=noise=reduced quality.

Comment by johnriley posted on turn off DFS with your K20D and K7 at 29/11/2010 - 18:02

Look at the top of the Your Photos section and the top posts explain how to post images in the forum.

Comment by johnriley posted on K7 poor image quality at 29/11/2010 - 16:25

This is one of the earliest Fish-eye lenses from Pentax. It took the Fashion world by storm as it was the first Fish-eye that did not require the mirror on an SLR to be locked up.

The lens is not good by modern standards, but suited the Swinging Sixties...the diaphragm is interesting in that it consisits of a series of circular holes of the appropriate diameters. Waterhouse stops in effect, on a rotating metal plate.

Comment by johnriley posted on Very rare Fisheye at 29/11/2010 - 16:22

Well it's nice to say hello and if you don't want to read the hellos it's quite possible to ignore them. No call really to have a go at individuals for taking the trouble to acknowledge the intro posts, how they do it, cut and paste or whatever, doesn't really matter.

It's a forum for everyone, not just a few, so the choice is there. Reply to intro posts if you want to, read them if you want to, and if you don't, then don't.

Comment by johnriley posted on Welcome messages - a suggestion at 29/11/2010 - 16:03

The most likely thing is in the phrase "sensor management reasons" which possibly means heat. I doubt that it's a Diabolocal Plot!

Comment by johnriley posted on turn off DFS with your K20D and K7 at 29/11/2010 - 15:42

Also to be borne in mind is that the Pentax 50mm f1.4 is not designed to be at its best close up. It has curvature of field and that will render attempts to use test charts a bit meaningless.

If a photographer spends his life photographing test charts then in this example the Chinon is the better buy...

Comment by johnriley posted on Shock Title fight result! at 29/11/2010 - 09:47

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johnriley

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