On 8 Jan 2005 at 8:18, J. C. O'Connell wrote: > seems to me that aligning a glass flat parallel to a sensor > would be child's play via a spacer. I think that this technique > would be good in a rangefinder camera but not in a SLR because > in order to get the dust out of the focal plane it would need > to be too far away from the sensor and would interfere with > the mirror travel.
Doesn't seem to affect the Sigma SD10. "The SD10 has a "dust cover" right behind the lens mount, protecting the mirror/shutter/sensor chamber. The idea is to keep dust from reaching the sensor, an issue for most digital SLRs" http://www.imaging-resource.com/PRODS/SSD10/SD10A5.HTM Rob Studdert HURSTVILLE AUSTRALIA Tel +61-2-9554-4110 UTC(GMT) +10 Hours [EMAIL PROTECTED] http://members.ozemail.com.au/~distudio/publications/ Pentax user since 1986, PDMLer since 1998
