Victor Engel

OK. They're both pretty big compared to other planets and stars. In browsing around, I found a cool picture of a Jupiter/Venus conjunction simulation...

Actually, because of blurring due to atmospheric turbulence, shots over a longer period would probably be useful. Judging by your Venus picture, this blurring is likely to be several...

I just did some calculations and determined the following relevant data: Using a 5D Mark II and a 500mm lens, a perfectly focused Uranus would be about 1.4 pixels in diameter. Given the current...

Probably the majority, or at least a healthy portion (I'll have to look it up in LR or something) of pictures I take are at f/2 or wider. How many MP does it take for that to be diffraction...

Sometimes in PS when things aren't working as expected, I find that I simply have a different item active than I thought I did. I might be editing a different layer than I thought, or I was in mask...

You don't know how to invert a mask in Topaz? That would seem to be an elementary function. I've not tried that, but I guess I should while my temporary license is still...

But that was such an expensive camera. How do you expect Canon to compete with that? For those who can't tell, I'm being sarcastic. -- http://www.pbase.com/victorengel/image/34032294.jpg

just joking, of course -- http://www.pbase.com/victorengel/image/34032294.jpg

Apparently, the site knows the language of the viewer. It said "slideshow" for me. -- http://www.pbase.com/victorengel/image/34032294.jpg

Some filters, though, have a limit in scope, say a maximum radius of 250 pixels or some such. With more pixels in the image, the filter becomes less usable globally and becomes more of a local...

There is always room for more megapixels as long as the lenses resolve more detail than the pixel pitch. That is the current state of affairs. With that extra resolution you can: * When you...

The thing is, though, each stop of additional dynamic range costs double the number of shots. So let's say your camera has 10 stops of dynamic range and you're exposing to the right for Venus. We...

Right. Venus doesn't have much detail on it anyway, unlike Jupiter. It's rather boring to look at. So you're right, the value is to record an event. The secondary value is to test the dynamic range...

In SD, the maximum recording time is 29 minutes 59 seconds. HD has a shorter limit due to the maximum file size. The exact time depends on detail, ISO, etc., but it generally around 10 minutes or...

Are you complaining about insufficient rumors? :) -- http://www.pbase.com/victorengel/image/34032294.jpg

In addition to what has already been mentioned, there is also metamerism that will throw a monkey wrench into your archiving process. Cameras are not designed to capture the full data of an...

Do you recall where you heard this? Is it actually stitched sensors, or is it two separate etchings on the same sensor? -- http://www.pbase.com/victorengel/image/34032294.jpg

I don't believe that is true (about the zero). Here's a trick I tried out once that works really well when you don't know how much feathering to apply. For an image such as yours where there is a...

The moon may not be visible. Today is full moon, and the moon moves east by about 50 minutes a night. If you wait until just before Venus sets, the moon probably will already have risen. The moon...

I like using skyviewcafe.com for viewing conditions. Venus sets around 9:25PM local time (+\/- some minutes depending on where you are in the time zone). You'll have to wait until long enough after...