BobORama

Your statement implies the difficulty is with the subject, not with your technique. I would argue the problem is with your technique, not with the subject. If someone told you that you were ...

It was weird enough I figured I'd ask.      I was able to, after some finagling, get a rough collimation via the camera at prime focus. I need an eyepiece for doing something better. Its certainly ...

Isn't this basically using the rolling shutter effect to some good end?

I am working to rehab an old SCT from my basement.  The corrector plane the secondary cell both became loose over the years of storage, and easily could be in entirely the wrong position.   I ...

I don't know if Bokeh is over rated, over used or merely used inappropriately.

I do know the explain-er video format is over rated, over used, or merely used inappropriately.

What next DPR? ...

If Pentax support cannot source a replacement, who can?  That's ridiculous. Honestly, I would leave it alone.  I have this lens and the the tiny dovetail on the collar is very shallow, just rotate ...

Be sure to look at the K-5 Dust Removal System schematic from Pentax Official.  Perhaps they are over simplifying.   The description specifically states the AA filter is a multi - layer deal with ...

Blebs or delamination of coatings, which usually appear to be like water stains, can appear years later as the coatings fail, but normally they are visible from day one. The AA filter in the K-5 is ...

It depends on how much you love the camera.  The IR conversion idea is actually the best one, the AA filter would need to be removed anyway.   If you want to try a few things I can post some ...

You know your oven thermostat is off by -17 degrees.  When you bake a souflee, you set the knob +17 degrees thereby counteracting the -17 degree error in the thermostat. Now imagine you are Ansel ...

What makes "digital" photography digital is not the means by which the light is measured, but rather the medium in which the image is stored.   It is possible to copy and reproduce a digital image ...

OK, but you asked for it.... Pentax IBIS can do this so precisely that it is used to implement their anti-aliasing filter by moving the sensor in a circular motion about the diameter of half a ...

I just looked at the DFA* 70-200 and I could see where if the rear of the lens caught on some fabric or perhaps using the "wrong" lens cap this might happen.  My arguably bad habit is to take the ...

Great, now we have to suffer a decade of people referencing the article without having read it saying "See!  Equivalence is a thing!"

So shocking that HP would not respond to highly technical engineer question on a 4 years old product. If you have no means to calibrate the monitor, and lack the means to get a calibration tool, it ...

This is a defocused Soligor 650mm mirror lens.

It all sounds easy, until you do it.   You get good results, but great results are frustrating and elusive.  I could go on,, but that would not be responsive to your question.

"Making garbage has never been easier!"

The answer is, you don't need one. I have used SD cards for timelapse projects where over the course of the project the card will have been entirely overwritten hundreds of times.  No problems. The ...

The other idea was have a top of box mounted sensor and a diagonal mirror.   This would allow you to significant reduce the thickness of the camera while maintaining the same apparent flange ...