[vsnet-chat 3562] "digital scans" of photographs

["." <crawl@zoom.co.uk>]

Brian Skiff wrote:

>Has the MISAO group considered starting to make digital scans of 
>existing emulsion-based surveys?  I would think having the films/plates
>of Takamizawa, Dahlmark, Collins, et al. scanned and analyzed in the same way
>as you have been doing CCD images would also be of great value.  The
>additional time baseline would provide "instant" lightcurves for huge numbers
>of variables now merely detected as a change on two or three dates.

Would it be possible to use these modern, normal, CCD cameras and a stand
to create such digital scans?

Some of these are only cost a few hundred whatevers nowadays, and therefore
probably within the budget of most national amateur organisations, for use
on loan or as part of projects, as I believe some of the national amateur
organisations currently do with telescopes and the like.

CDRs with digital images on them would be more practical than emulsion
archives in a drawer somewhere, which are occasionally taken out and looked
at with a disused plate measuring machine that some academic institue or
other has handed down [which itself may be kept in a cupboard somewhere
else altogether].

A web archive would be even better, but not necessarily feasible for an
amateur group.

John

VSNET Home Page

Return to Daisaku Nogami

---

vsnet-adm@kusastro.kyoto-u.ac.jp