Trollmannx

Also notice the stars forming a circle from Polaris, right side. In the good old days of astronomy (ortochromatic film and crude photometers) This area of the sky was called the engagement ring. Th ...

Yes - but for now cameras have limited processing power and that might be an obstacle to on the fly all species eye recognition. Guess the task is quite formidable given all kinds of outlines ...

A really fine collection of images! The images clearly how rewarding the 18-135 mm range can be, no need to change lenses and always ready for almost everything. Love this lens for handyness!

This is a good review if you want to say that you do not like Sony. If not, this review does not make much sense. None will blame you for not liking the Sony, and none will care about what you ...

Will get this lens - what is especially comforting is that reviews are positive and that sharpness is top notch, chromatic aberration is absent (really valuable under a starry sky) and bokeh is ok ...

Paid more for my A7 and had more than five rewarding and enjoyable years with that camera before upgrading. Now have the A7III, still 24MP. The original A7 is a bit slow but still offer very good ...

Eye AF use statistics and algorithms to search for eyes. Guess it would be hard to implement algorithms for any kind of species. It would be hard enough to include say dogs, cast and birds (and the ...

Covering the 16 - 200 mm range for ordinary photography. Also no educated home without a telescope, so a couple of those things here too! What really matter is always the next image. That is what ...

Would start with the 2.8/15-30 mm lens, practicing framing and focusing. Wide lenses are easier to master when starting out. Would also take some images with the 100-400, no converter, and practice ...

How dark? If you can see something with seeing effect OFF, high ISO, max aperture and 30 sec exposure time - then focusing might be possible. In this case it is quite dark but not pitch black. If ...

Metabones do also sell ordinary FE to E adapters, no glass, just an adapter (have one). So what is needed is a plain adapter, no glass. Got the Sigma MC-II now because there is some slight stray ...

Fine images, and looks like a great lens (guess the images are taken at full aperture). The color palette looks more like what I get with the Sony A7III without messing up the colors too much. ...

Interesting thread, just a side note: The bright ring in heavily stretched images is caused by overcorrecting vignetting. This happens also in different software. RAW as well as JPG. The main ...

Lovely image! Always interesting to see you guys getting the meteors inside the field of view. Have never had much luck catching the meteors photographically - have had more luck visually and have ...

The galaxy is hidden - but Michel found it! Another great capture of a fascinating object.

This image is quite good. Would hold back the sharpening a bit (white rims around craters and small detail). Makes the image look sharper at first sight, but oversharpening actually reduce the ...

A lot of experienced astrophotographers would not agree! The sweet spot between light collection (diameter of the entrance pupil) and speed is the 1.4/24 mm lens. This is important for recording ...

The Sony 4/70-200 mm G lens has some field curvature. This is part of the design. So I would expect slightly softer corners when focusing at the center, especially at f/4. That is excactly how mine ...

The Nikon D4 has faster auto focus (this is a flagship model). The A7III has a bit slower auto focus, but is more precise. The auto focus is still very fast in good light and not too bed in low ...

We are here - but that does not prove that intelligent life exist in the universe. Just take a look at how we destroy our home planet... Fine image of Cassiopeia!