Michel Adam writes:
> To keep this on topic, slides where taken with a Pentax 67 and 105/2.4.
> Literally, my first roll with the 67! I REALLY like the size of the
> transparencies!
Great aren't they :) You don't even need a loupe to look at them (not that I'm
considering the mega-expensive Rodenstock 3x full-frame 6x7 loupe). They
look even better when they're mounted.
I am seriously considering borrowing a Pentax 67 to shoot beside my old
RB67 for a day. The old RB lenses aren't too sharp and I'd love to see what
the Pentax glass is like in comparison.
> Now that this is out of the way, I have a question about how to apply
> filters
> in Photoshop 5.5 (on a PC).
I have 5.0LE (a cut-down version) but my answer still applies...
> If I scan with the Agfa Duoscan T1200, I can produce TIFF files with more
> than 8 bit
> per channel, but when imported in Photoshop, all the filters are grayed out.
Yes, most of the filters were written to handle only 8-bit data. More recent
versions of Photoshop (or some third party plugins) may be able to handle
higher bit depths [mental note: I must see if The Gimp can handle it].
I have an Agfa Arcus 1200 (next model up from the Duoscan, I think) and
when I send 16-bit data to Photoshop the only things I can adjust are curves
and brightness/contrast. These are the only tools I use that will benefit from
the 16-bit per channel data but I have to convert to 8-bit before doing anything
else (rubber-stamp and unsharp mask). So I need to make sure I have my
brightness, contrast and colour balance set before I throw away half my data.
> Only when using 8bits/channel can I apply filters. I would very much like to
> scan with the maximum resolution and color depth.
I think you'd only notice a difference if you were applying some major
corrections to the brightness, contrast or colour balance. Fortunately Agfa's
scanner driver is _really_ good and will do most of the initial adjustments for
you using the colour profiles.
> And lastly, has anyone used the PanoTools plugin to do stitching? Is there
> anything easier and more effective to use?
I built a 35mm panorama adaptor for my RB67. It's far from being convenient
but it does work (and those wide transparencies look really nice on the light
box).
If you have money to burn you could buy a 6x17 rig :)
Cheers,
- Dave
David A. Mann, B.E. (Elec)
http://www.digistar.com/~dmann/
"Why is it that if an adult behaves like a child they lock him up,
while children are allowed to run free on the streets?" -- Garfield
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