I was just testing out my new Eye-Fi card for tethered shooting. My
plan is to have images pop up in Lightroom as I shoot so I can check
for desired lighting, focus, etc. The card basically works fine, it
transfers RAW images nicely, but the process was pretty slow and it
runs even more slowly if I'm actively shooting -- the card waits to
xfer until there's a lull. So I decided to switch the camera to RAW+
(RAW and JPEG) and tell the Eye-Fi card to only transfer the JPEGs. I
plan to dump the RAWs to the Mac later, but I will get the JPEG
previews right away, as I'm shooting.

To my amazement, I found that four star 14.6Mpixel JPEGs are exactly
the same size as the PEFs I've been getting off the K20D; averaging
about 10-11 megabytes each. So I configured the K20 for 2Mpixel 2-star
JPEGs and that brought them down to 500 KB. These xfer off the Eye-Fi
extremely fast and show up right away.

The thing is though, those people who think that RAW images are too
big and that they are saving space by shooting JPEG are being silly,
unless they are also turning the JPEG quality way down. And if they
are doing *that*, then really: why use a dSLR at all?

Might as well shoot RAW, get all the benefits of extended dynamic
range and tweakability, and not worry that they use more space and
resources, 'cause they don't.

-- 
-bmw

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