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johnriley

Joined: 19th March 2002

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johnriley
I never used the split image or the microprisms when we had them. Now we have AF and it's probably more accurate than the human eye.

There have been experiments done with focusing and manual focusing was shown to be quite unpredictable. Many people cannot recognise the point of greatest sharpness and contrast.

Comment by johnriley posted on K5 question re focus point selection at 03/11/2011 - 11:30

johnriley
Whilst there is no doubt a theoretical point in this, in practice the technique of using centre point focus and recomposing is fast and effective. If required, Quick Shift can be applied easily and is much quicker than trying to select a focus point.

It isn't quite so clear-cut anyway as lenses do not have a flat field, with the exception of macro lenses. Which is the greater error is a moot point. In any event the effect is only apparent at quite close distances.

Comment by johnriley posted on K5 question re focus point selection at 02/11/2011 - 23:30

johnriley
Lens now sold and paid for.

Comment by johnriley posted on SMC Pentax-DA 35mm f2.4 AL For Sale at 02/11/2011 - 14:03

johnriley
PM replied to.

Comment by johnriley posted on SMC Pentax-DA 35mm f2.4 AL For Sale at 02/11/2011 - 13:23

johnriley
Sample photo with the lens:
[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/048ModelCollection800.jpg[/IMG]

Comment by johnriley posted on SMC Pentax-DA 35mm f2.4 AL For Sale at 02/11/2011 - 09:33

johnriley
I bought this as I had been given some Jessops vouchers and used it for one fashion shoot. It was excellent and is the lens used for the ePHOTOzine test. Now I have the FA* 31mm I don't really need this, so here it is on offer here first. It will go on eBay at weekend if it needs to.

MInt condition in every respect. Includes box and all original accessories. Current price at SRS and Jessops is £134.00 and £134.95 respectively. Asking price £110.00 including shipping to anywhere in the world. Payment by PayPal, UK cheque or UK postal order.

[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/001-35mm-f24-800px-1.jpg[/IMG]
[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/004-35mm-f24-800px-2.jpg[/IMG]

Comment by johnriley posted on SMC Pentax-DA 35mm f2.4 AL For Sale at 02/11/2011 - 09:29

johnriley
Maybe I've just been lucky, but I've seen exactly what I expected to see all the way through. Perhaps only parts of the database have a problem?

Comment by johnriley posted on Pentax Photo Gallery at 02/11/2011 - 08:32

johnriley
Quote:
I like the older way with the Fn button a bit better but as I hardly ever use anything but center focus it's not a major issue for me
I totally agree with that.

Comment by johnriley posted on K5 question re focus point selection at 02/11/2011 - 08:31

johnriley
Moved to Classified Ads.

Comment by johnriley posted on FA 31mm f1.8 AL Limited - offer at 01/11/2011 - 15:04

johnriley
Keep checking the Classified Ad section of the forum - there have been at least two mint DA* 300mm lenses in the past three or four months.

Comment by johnriley posted on cashback at 01/11/2011 - 07:43

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