Common Watch Battery Sizes

I have this and other Kaiser push-on caps in various sizes and I find them handier to use than the more common center-pinch. Seems like I always have trouble getting a grip on the pinch mechanism, or I don't get it seated just right. Especially a problem with very thin-rimmed filters. One note: Don't go by the size of the filter. For example, I have a lens that takes a 77mm� filter but needs the Kaiser 80mm cap. To figure out what mm you need, take a ruler and measure across the lens or filter face at the widest part, then convert to millimeters. These caps aren't to everyone's liking but they work for me!

Step-up rings are a common tool for fitting lenses and filters of different sizes. Most any will do, but some are better than others. Good thread fit is essential, but that's usually achieved. What the PRO Sensei rings add is a slight knurl-like grip which can be a help when unscrewing sticky filters. (Hint: don't over tighten them in the first place!)

Great item for charging batteries! It charges AA and AAA sizes, the two most common sizes for me. I've used the batteries in my flash-pack and they seem to be holding up very well. This is my only battery charger, and the batteries are my primary use batteries.

I bought this holster to hold the common Canon LP-E6 battery pack for 80D camera, and others; fits smaller Olympus batteries as well. It stretches to fit as advertised and mounts handily on the strap. I put it on the right hand side so that the battery does not swing against the rear view screen while shooting vertical. Great product and made in Montana, USA.

I like that this uses common AA rechargeables for easy battery duties. A history of Quantum and Metz gear makes you appreciate that! Because of Covid issues, I haven't had a chance to stretch the legs of this pack in any stressful action but its ease of use gives me confidence that it will serve well.

This excellent tester gives a reliable indication of the remaining capacity of many common battery types. Easy to use and convenient size. It is best to take 2-3 repeated readings to be sure of a reliable result.

A common accessory for battery powered cameras BUT, in addition to expected flawless function, just exudes quality and simplicity in appearance.

These have been around for ages with the internal backup battery a common source of failure. These no longer have a battery and the firmware updated to handle power loss without corruption. It is now safe to run these off PoE power. I installed the Network and Protects apps. I have about 100 devices on the network, a doorbell, and a wireless camera. It has been working flawlessly for a couple months now, some of the network features are more eye candy than useful, however.

This little flashlight is the greatest! Cheap common battery, and super bright! Actually shines out for thirty yards, depth of my yard, when I have to take my little dog out.

Now I only have to carry 1 charger when I carry 2 or more cameras using different battery sizes. Great idea.