Archived posting to the Leica Users Group, 2003/08/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]If I remember correctly, the old Canon Pellix had a plastic pellicle. I think the modern Canons are plastic too. Is it less fragile than a CCD so you can clean it again and again? Dream On Dept.: Imagine an R8 or 9 with pellicle mirror and the digital module... Regards, Amilcar - -----Mensagem original----- De: owner-leica-users@mejac.palo-alto.ca.us [mailto:owner-leica-users@mejac.palo-alto.ca.us]Em nome de David M. dorn Enviada em: segunda-feira, 11 de agosto de 2003 00:53 Para: leica-users@mejac.palo-alto.ca.us Assunto: Re: [Leica] Leica Lens to Canon EOS Adapter and Pellicle Mirror Gary Williams wrote: "....... Does the Canon pellicle mirror in fact not move at all when the shutter is released?" Gary, The Canon's pellicle mirror does not move. It is fixed in place. As I noted in an earlier, the light loss was about 1/3 of a stop. I never found it objectionable even in low light. The eye can adapt very quickly to changing light levels. As I think more about it, it seems to me the pellicle mirror would make great sense for a digital SLR. Properly designed the pellicle mirror (since it does not move) could be used to seal the sensor chip from dust when a lens change is made. With the ever increasing sensitivity of chips the light loss should have almost no effect on on performance. Also the latest coating methods such as those used by Swarovski in its latest binoculars should give the pellicle mirror better transmission than the methods Canon used 15 or so years ago. David - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html