Archived from groups: rec.photo.digital (
More info?)
Tom wrote:
> Are these things reliable? Do they slow a camera down? And if they do
> slow a camera down is it in such a manner that only a sports
> photographer would notice?
They are generally reliable, though not a substitute for archiving
originals in a more perminant format.
They do slow cameras down. Some cameras have a buffer that allow
multiple shots to be taken before they're all committed to storage
memory. Those cameras will endure less of a slowdown, though depending
on how they operate, they may enjoy fewer fast-frame continuous shots.
Anyone who wishes to take a few shots in quick succession will notice.
As a matter of fact, anyone who wants to look at the picture they just
took, a fraction of a second or so after having taken it, will notice
too, as it will take longer to complete the "commit to storage" step,
and longer to retrieve it. How much longer is hard to say, and whether
you in specific will care is hard to say as well.
> Are there any downsides to these things (like power usage, having all
> of one's eggs in one basket etc)
Downsides: Yes, power usage is an issue. So is heat; microdrives do get
warm. It's hard to know whether that will be an issue that matters at
all or not. They also are "mechanical", rather than "solid state". So
there are moving parts to wear out or to be damaged by impacts. But on
the other hand, they do tend to be fairly robust.
Having all eggs in one basket? You don't use them for archival
purposes, that's all. Commit your originals to CD or something, and use
the microdrive as transient storage, just as you would a normal CF card.
Of course it never hurts to have a backup plan when you're in the
field, so carrying a regular CF too is a good idea.
With CF cards in the 1gig or larger category already out on the market
at reasonable prices, is a microdrive really relevant? Maybe... maybe
not.
😉
I have a 1gig SD card in my DSLR, and it holds about 340 6mp photos in
the highest quality jpeg mode. In raw mode, it's more like 70. At $89
bucks, I could carry a couple of them around, shoot 100% raw photos, and
still have enough storage for 140 shots. ...or 680 in the highest
quality jpeg mode.