just Tony

I have printed 13'x38" sheets that were fed in through the top sheet slot. The Windows printer driver accepted that as a custom sheet size just fine for that location. However it was slightly ...

There's a tape we use at work that is very thin, leaves no residue, and lasts for years and years without losing grip: Kapton. Like so (just shown as an example, there are many suppliers and I've ...

You would ascend during the day in order to get set up in time - when the moonrise and the eclipse are coincident, as this would be for you, the moonrise will happen at sunset. So you could ...

Can you get to the top of any mountain? The maximum eclipse will be close to your local moon rise. Here's what you could do: (1) Find on the net: the timing of the max eclipse and contacts 3 & 4 in UTC.

My fingers interface very well with the D810 grip. My finger tips do touch the front of the camera but there is no pressure there. Instead the "inner front" edge of the grip nestles directly into ...

I would spend a month using the 70-200 and the 400 but not the other two. At the end of that time, I would make the decision. It's even possible that you end up selling the 400. Don't hang onto ...

I'm getting good results from bumping up my shutter speeds when using my heaviest lens. Pretty smart to free up the funds when the item in question doesn't fit one's needs. I just sold off a couple ...

#26 are straight, but as pointed out, but if they are clones of the lookalike #11 then they are also flexy because of how thin they are.  I'm in agreement that a more stout blade would be a better ...

What problems are you encountering with your 200mm f/2 and 70-200 f/2.8 E FL?

In addition to two or three examples of unsatisfactory images, some description of what equipment you've used before now that has worked well for you may help.

One main function is probably mechanical protection in case you set the lens down on that end without a rear lens cap. Do you see that tiny slot head screw near the aperture lever? It and two ...

One thing I like to do when exploring how far to go in photo editing is to purposely go what I think is just a little bit too far, then roll it back with a slider. Quite often I end up choosing ...

Correct, it doesn't do anything physical. But the firmware is keeping track of the number of presses. They failed to build in a little bit of extra logic into the firmware that acts slightly ...

It has the same things you need to do even if not in LV: (1) Mup release mode (2) enable the setting for EFCS in the menu (3) two shutter button ...

As I hypothesized: https://richardhaw.com/2017/01/18/repair-micro-nikkor-p-55mm-f3-5-auto/ Jim, in one of the links you provided earlier someone stated that it's possible to undo the compensation ...

Here is the wording I should have used: If the entrance pupil is acting as a beam limit then that would also place a limit on the exit pupil, if I can trust what I know about ray tracing. I have to ...

What comes out must first go in. The last sentence in my quote above addresses that field stop aspect. Closing down the entrance pupil also closes down the exit pupil.

My non-compensating successor lens 55/2.8 Ai-S has two long metal "popsicle sticks" that flank a tab on the iris actuator, such that the actuator stays at the same rotation for every focal ...

Have fun, those lenses will be great on that body.