Re: Digital SLR for microscopy?

#1) Canon 350D, 5D, 20D and Nikon D200, D2H, D2X all have true MLU.
Regarding "shutter shake", the Nikon F3 is the only one I know of that can
qualify for being used for photomicrography with its own shutter (no
external shutter) (when used without a speedlight, of course). But the F3
isn't digital. The D70 and 350D are rather awful. I do not expect the others
to be any better regarding this.

#2) I prefer CCD due to the fact that my D70 syncs at 1/500 with a
speedlight (e.g. SB-800) and because a standard CCD based DSLR can do IR and
visual with the same configuration. BTW, the "CMOS vs. CCD wars" are raging
at rec.photo.digital. Most people here use CCDs with or without Peltier
cooling to achieve the best low noise performance.

#3) As you know, MLU will not save the day. There is considerable vibration
coming from the shutter curtain of a DSLR. Leaf shutters are preferred. With
a DSLR and without flash, you almost always need to use an external shutter.
Avoid 1/30 to 1 sec exposures and use a very stable mount. Control the
camera via PC if possible and follow the book of J.G. Delly "Photography
through the microscope" or any other good book about photomicrography.

Gregor



<hbarwood@xxxxxxxx> wrote in message
news:1136927692.109525.196640@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Can anyone tell me:
>
> 1) which camera(s) have the lowest vibration from shutter shake. Any
> with true mirror lock out?
>
> 2) differences between CMOS and CCD imaging in regard to speed and/or
> noise?
>
> 3) any significant problem areas I should be aware of?
>
> Thanks.
>
> Henry Barwood
> hbarwood@xxxxxxxx
>


.

Relevant Pages

  • Re: Magnitude from photon counts
    ... >> channel of CCD data where any references are separated in time. ... But what if the shutter design prevent the entire focal plane from ... better than others at uniformly illuminating a focal plane, ... image if you don't know the time associated with the exposure. ...
    (sci.astro.amateur)
  • Re: Magnitude from photon counts
    ... >> channel of CCD data where any references are separated in time. ... But what if the shutter design prevent the entire focal plane from ... better than others at uniformly illuminating a focal plane, ... image if you don't know the time associated with the exposure. ...
    (sci.astro)
  • Re: Strange banding on still photos taken using lights for filming a TV drama
    ... Almost certainly CCD rather than CMOS. ... but why would an electronic camera need a ... mechanical shutter at all (except for a protection shutter for when it ... protect the CCD - for example if you pointed the camera at a bright light ...
    (uk.tech.broadcast)
  • Re: LCD for SLR
    ... >>So I visited the local camera shop and looked at the Canon DSLRs, ... > shutter lag of most point & shoot digicams. ... a leaf shutter in the camera closes ... the CCD is electronically discharged. ...
    (rec.photo.digital)
  • Re: D70 Fill flash overexposed wildly
    ... If the shutter in the D70s travels vertically you will ... >> end up with only the top or bottom half lit by the flash. ... I've used the D70 with studio lights, ... normal shutter speeds. ...
    (rec.photo.digital.slr-systems)