Did you not manage to catch it Stan.... Whoosh!

This is a straight copy of a Kodachrome slide with a Pentax_A 50mm f/1.7 on K-5.... took only a few seconds
to copy each slide using the Pentax K Slide Copier.
Lighting was a large energy saving globe light (3200K) CB set in camera.

Slight alteration to CB no other PP or sharpening.

Taken in Seville 1972 Spotmatic II with 50mm f/1.8 lens - Kodachrome



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Condenser's also lost a lot of highlight detail which might
not matter too much with 35mm, because it had 1 Zone less on
the Ansell Adams scale than 6x6 and larger, but it was
noticeable on the larger formats such as 6x7.

The exposure times were longer as well with diffusion.

I've still got a Super Chromega D700 6x7 diffusion enlarger
although I've not used it for years.

The K-5 is very good for photographing slides (not tried negatives)
and you get a RAW which can be manipulated quite a bit.

HDR may also be possible from several shots.

It doesn't pick up all the dust that scanning does
especially if you use a diffused light source, which
was the way to go with enlargers anyway.

Just to elaborate on what I said about Quickshift being
handy/essential on this or any Pentax lens.... it focuses
a lot faster if you twist it towards infinity before focusing.

The reason for this is the way the K-5 is programmed. It
will first wind the lens focus into the minimum focus
distance... in this case about 1.4M until it hits the
correct focus point. If it doesn't find it... it will
start going from minimum focus to INFINITY and stop
at the point it finds correct focus.... So if your
original focus setting on the lens is closer than the subject
it will wind in and then wind outtaking
about 3x as long to focus than it needs to.

For this reason the plastic mount version of this lens
is a very poor buy, because it hasn't got QS.

It's also an excellent lens for manual focus.

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Well said we don't want any people with brains using Pentax cameras
They might find out how to work them and then we can't moan to Pentax
about our lack of brains and can they please update the firmware

I find it quite unbelievable the number of people complaining
about poor AF when they don't even know how to use it!


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So no BetamaxOM1

They would probably just make them disappear like Aiwa

If your going to make statements like that on a Pentax site then you really need
to back it up with some evidence So where can we see the grey card test results! :

That seems to show what good lenses the A series are

These were some results I got Pentax_A 50mm f/1.7
Expodisc is better than a white area and a reading
should be taken 1st and then a Custom WB set in the
camera.... I messed this one up the RGB wasn't the
same across each line, but I later did it again
and wasn't too far out.


======Paste============================
K-5
Pentax_A 50mm f/1.7

WB Custom via Expodisc

Av Aperture set from Dial

f/1.7 114 112 126
f/2.0 108 106 120
f/2.8 099 097 110
f/4.0 105 101 115
f/5.6 102 100 113
f/8.0 102 100 113
f/11 105 103 106

WB Set again from Expodisc

f/11 106 106 108
f/4.0 105 105 107

Seems OK from f/2.0
All slightly too dark

===========End Paste=====================



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The Green Button metering or the apertures on an
M series seems to vary... this was the results after
removing the aperture lever on an M28. I then used
Av on an Expodisc.

Note indicated speeds don't look too bad, but they
could well be rounded off by the camera. Possibly
the exif might help. Some variation is expected
because the light could change, shouldn't effect
the exposure though.... using Av.

28mm f/2.8 M after Dremelling off the aperture lever

200 ISO

f/2.8 102 105 124 1/640
f/4 115 118 137 1/320 Nearest to 117/118 = Correct Exposure
f/5.6 131 134 151 1/160
f/8 131 134 151 1/80
f/11 145 148 165 1/30

This seems to indicate that just de-crippling the
lever will not fix things.
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