New Canon 5D

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Philip Frampton - 23 Aug 2005 21:37 GMT

Just read about the new canon 5D - 13M-pixels and full size sensor. EF
mount does not take EF-S lenses. I think it's clear that eventually
we'll have a whole range of canon digitals from pro 1D and 5D down to
amateur (350D replacement) with full size sensors so that existing wider
angle lenses work as expected. If the pixel density stays the same, then
moving to full size sensors won't be a disadvantage over the 1.6x
magnification of small sensors. Hopefully the price of 2nd hand 10Ds
might come down soon so I can have a play at this digital stuff :-)

Philip

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Malcolm Stewart - 23 Aug 2005 22:40 GMT

> If the pixel density stays the same, then
> moving to full size sensors won't be a disadvantage over the 1.6x
> magnification of small sensors. Hopefully the price of 2nd hand 10Ds
> might come down soon so I can have a play at this digital stuff :-)
>
> Philip

I think the pixel density is slightly coarser than on the 10D, but have yet
to see the figures.
The 10D has already dropped seriously in price - it dropped when the 20D
became easy to obtain.
I'm just hoping that the UK street price of the sensibly sized 5D will allow
me to get one sometime soon. I have a number of short focal length prime
lenses (so as to give a semblance of wide angle on the 10D) and am looking
forward to making full use of them on a full frame DSLR. They're pretty
impressive on film.

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M Stewart
Milton Keynes, UK
http://www.megalith.freeserve.co.uk/oddimage.htm

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Stewart Pinkerton - 24 Aug 2005 06:55 GMT

>Just read about the new canon 5D - 13M-pixels and full size sensor. EF
>mount does not take EF-S lenses. I think it's clear that eventually
[quoted text clipped - 4 lines]
>magnification of small sensors. Hopefully the price of 2nd hand 10Ds
>might come down soon so I can have a play at this digital stuff :-)

However, this won't solve the problem of digital sensors being much
more reflective, and requiring much shallower angles of incidence than
film. That's the main reason that the latest 'digital' lenses are of
telephoto construction, even when of quite short focal length, and
have very careful construction and coating to minmise scaterr from
light reflected off the sensor surface.

It strikes me that the Nikon approach of building fine-grid APS-C size
sensors is a more sensible way forward.

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Stewart Pinkerton | Music is Art - Audio is Engineering

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tonytup - 26 Aug 2005 13:08 GMT

Stewart, technically you may be right. but if taking into account of
the amount of post-capture PS skills, that slight drop in image quality
caused by the CCD 'reflectiveness' may come off to nothing of a
concern at all.

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