Peter Heckert2

I think the crop factor gives a quick estimation in which class the sensor belongs.

For most purposes this is the best.
For those who want more accurate information, aspect ratio and dimensions are required.

Now, the first thing is: go to the places, see the images, have the light, shoot it. Some of the images here -in this size- can be shot by a superzoom. The last image -lone elk at the river- for example. You need to be there, know the places and the animals, possibly get permission, be at the place at the right time.
If I look to the second image -kingfisher out of water- probably shot with 1/2000 or faster, this is impossible if you dont have the light. Here birds avoid the sun, they are only in the sun if there is no other possibility, as in new zealand ;-) The best camera and lens cannot do this image here at 1/2000 because sun is rare and if there is sun, there are no birds ;-).

This might be the end of PDAF and mirror technology.

Is it possible to use this software on a phone powered by windows mobile os?

So it is proven it can focus on white horses with black belts.
Whats about black horses with black belts?
;-)

Taken with Zeiss 20x-75x eyepiece and Sigma 30mm.

Taken with Zeiss 20x-75x eyepiece and Sigma 30mm.

Taken with Zeiss 20x-75x eyepiece and Sigma 30mm.

Spotting scope with original Zeiss 20x - 75x eyepiece.
At the eyepiece is an adapter, that I made from cardboard. It fits almost exactly the 46mm filterthread of the Sigma 30mm objective. The inner diameter of the rubber ring is just a little bit smaller than 46mm this is a nice match!

I intend to insert a straylens into the adapter, this should improve field flatness and autofocus. Quality surplus lenses that could do the trick, are available on ebay for cheap.

So far my best BIF shot with the spotting scope.
I want to go high up in the vineyard, where the redtailed hawks come rather close sometimes and hope for better shots.

Another example at 850mm with Oly 12-50 and XW20.
This is sharper. At good light and shorter exposure times, the shutter shock should not be a problem for me anymore.
CA can be adressed via PP, but I hope the new Hyperion eyepiece will improve it.

Normally I prefer to use letter stamps at a 5m distance for testing purposes. Because the patterns repeat over and over, center sharpness and corner sharpness is easier to compare.

At the perforation holes it is easy to see CA. Also distortion is easy to see.

There is still some loss due to shutter shock.

With a sony a57 with electronic first curtain enabled there is no shutter shock at all and it is so sharp, that the printing dots can be seen.
Also I see the dots in the focus magnifier of the OM-D as preview, but not in the resulting image.

5 Euro on a 5m distance ;-)
Focal length 750mm. OOC JPEG without postprocessing.

Pentax XW20 + Oly 12-50 was used.
I think it is sharp. The blur in the corners might be not so good, but partially this is spheric abberationj, that means if I focus to the corner, it will be sharp, but the center will be unsharp. To some degree this cannot be avoided with telescopes and spotting scopes.

It has pincushion distortion and CA that is too bad for an expensive eyepiece like this.

This is taken at 1000mm (optical) or 2000mm( equiv) focal length and cropped.
You see, how unsharp and bad the XW20 is (this was used).
OK, I admit, some PP was required.

Shot with Sigma 30mm and Hyperion Mark III zoom eyepiece.
This eyepiece is nice, there was no noticable CA and it is very sharp at the focus location, so crops are sharp, but as all zoom eyepieces it has spherical abberation which gives corner sharpness problems.

So I want to replace it by the Oly 12-50mm and a fixed 20mm eyepiece. Unfortunately Zeiss has nothing like this, but Astro eyepieces can be adapted.

I use the Pentax XW20 eyepiece.
This is expensive and the filter thread must be cut off to use it on the diascope.

Anyway - Olympus MFT 2x Teleconverter is much more expensive ;-)

I hope to try a Hyperion 21mm soon. It is said, this is sharper, has less distortion and less CA. And it is cheaper. Let's see when it comes...

Shot at daylight with Sigma 30mm, Zeiss 85T FL and Hyperion Mark III.
Focus method: Autofocus.

If the EVF had 2x and 3x focus magnification would be more useful to me than an increased pixel count. Why increase the pixel count?

To add this: The autofocus, especially pinpoint autofocus is usable and it is a pity that shutter shock disturbs so much.

Digiscoping is extreme teleshooting at slow shutter speed and high magnification.

MFT is not good for this in my opinion.
Long exposure times are needed.
The shutter shock ruins the sharpness at 500mm and above. I tried it with G3 and OMD and a Zeiss diascope.
Results with a Sony A57 and electronic first curtain are much sharper.

The best results in digiscoping are achieved by compact cameras,DSLR with mirror lockup, or Sony SLT or better NEX with electronic first curtain. Especially focus peaking is very helful, so MFT is the worst choice for this type of fotography in my opinion.

Goto flickr and search for "Zeiss diascope" and you see the equipment that people use and the -sometimes amazing- results they get.