OT - Caveat Emptor - and OT Photography

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Guest

Guest
Jeremy,
Ebay is great if you find a seller you can trust and remember "if it looks
too good to be true it probably is".
I don't know if you have experience of digital photograph but seeing as this
is OT, and you seem to have an interest in photography; the analogy of a
storage card to negative is true but digital camera users are often more
specific in the analogies used.
Basically the storage card is the film. If the image is stored as a RAW ie
untreated (undeveloped) output from the cameras sensors it analogous to a un
developed film, if the image is stored as a compressed and treated image ie
a JEPG or JPG it is analogous to a negative or developed film.
Anyone wondering why the difference is important, it's because once the
camera has developed the image received from the sensors you can not undo it
the decisions made by the camera, some information is lost in the JPEG
format. With a RAW format you can play with the image in the same way as
the photographer who develops the film can try to get the best the negative,
the advantage is you can "develop" the film as many times as you want, he
can only do it once. With conventional photography printing the image is
important but getting the right negative is a real skill.
So next time you are looking a high end digital cameras (or if you already
have one) have a look at the RAW format and what you can do with it, I think
it's probably the least used feature on the new SLR digital cameras but
possible the best reason to buy one.
Malcolm Bagley
Stafford, UK
1975 FJ45 Pickup (In Work)
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Guest

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Hi Malcolm
I'm very familiar with the digital workflow - I've just hired and used a Swiss
Alpa camera with a Phase One back with a view to flogging all my stuff and
buying one - with a film back however as I can't afford a digital back yet.
All I'm saying is that if your pictures matter to you, don't compromise on your
storage device. I doubt if anyone would buy a roll of Fuji Velvia that had been
sitting in a shop window in full sun for 6 months... you'd buy from a reputable
source. Same with SSD cards I think.
Jeremy
Quoting Malcolm Bagley <[Email address removed]>:
 
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