The 50mm f/2.8 FA Macro or possibly the DFA version.
Sharp at f/2.8 no need to stopdown unless you need
the extra DOF

The 50mm f/1.7's are all very sharp. I like the A Series
and the f/1.4 A isn't far behind the f/1.7


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Does your phone have a 13amp plug on the end....
and rayon - cotton - silk etc. on the dial?

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I like seriously truncated posts!

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Where has that Weatherperson gone who only a few weeks
ago predicted that we were doomed for at least 10 poor
summers

Slide film has a range of around 5.6 stops.
Colour or B&W just about covers 10 stops.

http://www.luminous-landscape.com/tutorials/zone_system.shtml

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The man's raincoat is actually tied to that bollard
so he can't move!

Nothing like a good raincoat this weather to keep you
dry and cool...

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I can't imagine anyone paying £485 for a converted lens
especially without seeing it. Also it may not fit the
Pentax K extender which would cost about £100. It has
got the hood though.... I seem to have lost mine I thought
it was in the case but it isn't. Any 55mm diam. screw in hood
will work just as well.

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£500 - £600 See..... link

That seller has already sold one for £639 BIN/Offer link

I might sell mine

Some info/history link

Edit: If you look how sharp the shot of the lenses is at
the bottom of the ebay list. It is very sharp, but it's
not taken with the Tokina as the seller says. The exif
claims it's the smc PENTAX-D FA 50mm F2.8 MACRO on a K-r....
Sharp or what!

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The first one wouldn't look out of place on an advertising
brochure Excellent!

Back in the day when you could buy 4 gallons of petrol for
a £1..... an old Lea Francis would have set you back £50 - £100
Not as smart as that one though... mostly black

Pointless arguing... this particular test shows the 18-35mm lens
to be very soft at the edges at 18mm. Nothing you say is going
to change that Period

It could of course be used in place of a 35mm f/2 or f/2.4
or even 31mm f/1.8 LTD that's down to the prospective buyer.
It doesn't give them any real advantage and I'd have to
see how much it vignettes and how much light it transmits
through the 17 elements. It's also quite a bit heavier than
a 35mm f/2 or f/2.4 at 810grms and longer at 121mm



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