You assume correctly, Moose, there was definite tongue in cheek there. And you
have hinted at the truth when you say "There is, of course, no more detail
information than in the Raw file. " because the camera cannot /record/ separate
R G and B values per pixel, it can only deduce two of the three, leaving me to
question what benefit Chris derives from the much larger filesize of the TIF
compared to a SHQ JPG.
I hadn't realised that Olympus offered TIF output on several of the early DSLRs
- until increasing sensor resolution made recording of the a bottleneck - which
is, in a way, the same point that I made above. Instead, they shunted TIF
production offline, forcing users to convert the raw file to TIF using Studio
or whatever software.
Piers
From: Moose
Sent: Thursday, 23 May, 20:29
Subject: Re: [OM] UV and Skylight Filters
To: olympus@xxxxxxxxxxxxxxxxx
On 5/23/2019 7:33 AM, Piers Hemy wrote: > Hmm, I wonder how it does that? And I
wonder how you know that it does? Where's the smiley face? I assume TIC? In
case not . . . The camera demosaics the Bayer array. One knows because the TIFF
is three times the size of the sensor, 8 MP for each color. (ORF/Raw is 13.6
MB) There is, of course, no more detail information than in the Raw file. (Some
of Topaz' recent AI based app/plug-ins do, in fact, invent plausible details,
but the E-500 doesn't.) The impression that the TIFFs are particularly sharp
may be because the 1.8 MP JPEGs he refers to are heavily compressed using
JPEG's lossy algorithm. The manual says a 1.8 MB JPEG is highest level of
compression the camera offers. You can't compress to 1/12 size without losing a
lot. Could also be some sharpening applied to the TIFF. Straight Man Moose --
What if the Hokey Pokey *IS* what it's all about? --
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