Does it have two orthogonal adjustment screws for calibration?
825592
It's ten bucks! It has no adjustment screws. I sighted it, then rotated the "cartridge" by 45 degrees and the laser was still at the original sight point. Thus, the laser was centered in the "cartridge." I did push the bolt home to keep the "cartridge" in place.
825593
no it has no adjustment just put it in receiver where a live round would go and adjust sights or scope to the laser beam.
1792496
Yes. Works good. Hard to adjust. Be careful the adjusting screws will strip out
1509511
There is two screws you loosen up and adjust the camera and re tighten when done.
1551023
No you don't. My understanding is that it is supposed to have an internal mechanism to calibrate.
2254734
I didn't look to see if it could be calibrated. It gives reasonable results out of the box.
1371668
There are two screws on each side to adjust the angle, but if it was mounted crooked, vertically, then no.
863880
I do not believe that the model I received had two screws. It does have the hook. I think it is ambidextrous, but have not actually tried it. I think it's ambidextrous because there appears to be a mounting spot on the left side of the holster.
990087
Yes. Two different screws come with each unit. A shorter one for if you don't use the spacer, or, a longer screw for when you do use the spacer.
135280
I am not sure. My need was for accuracy and adjustability. Those two, this piece excels at. I love them for what I do and need.
2007146
Yes, elevation and side to side. Adjustment knobs are locked down by a small set screw.
1467649
Yes, it has a "scale ring" that you can use for precise adjustments but, it does not zero out. You have to start from your own starting point. I find it very useful.
1902159
Yes. There's a select button for three different "starting points" on the device. The middle selection marks the tripod mounting hole reference. The other two mark the front and the extreme rear of the device as their points of reference for measurement to the end point.
2220487
Yes. You don't attached this to the lens, so you don't need multiple sizes. All you do is hold in in front of your lens for one shot to do the calibration.
804564
No it doesn't have many adjustment functions, might want to consider something else
1215964
No does not require calibration. I compared with another scale and it was accurate.
232603
Yes it does. the only problem I had was when I dropped it and the batteries fell out. Works just fine, I have not yet brought it to my doctors to 'calibrate it' against their equipment however I believe it's pretty accurate.
1864193
No, but it is removable with one screw and could possibly be manipulated if necessary. Its actually surprisingly accurate and a lot of fun.