Fowler52-664-009 Pocket Optical Comparators, 10X Magnification

Initially gave this a fairly poor review, and I still say the focal range is just awful... but I can't deny that the quality is good. It's got a pretty good range of reticles. One of the combination reticles has graduations of .05mm for the first mm of it, which is pretty handy. Kind wish it came with a circular angle reticle that had 1 degree graduation around the entire circle, but it's more of a preference than a real problem. Biggest complaint is still the inability to focus to control the focus enough to be used without glasses

The Pros: Comes with lots of reticles (inch, metric, angles, thread pitch, line thickness, etc.); Reticles have little plastic storage cases that fit in the storage box; Unit made in China, but seems solidly built; Has diopter adjustment; Reticle and/or light pipe can be unscrewed for unobstructed magnification.The Cons: 21mm makes for limited light transmission and FOV (Field-of-View). If you use a "busy" reticle, you will have to dodge and weave to see/read the extreme points of it. Would be nice if the diopter let you use it without glasses/contacts, but this seems to be an industry norm for all scale loupes (that or they are tuned for far-sighted people).Works well enough for me. As long as you don't plan to use it for hours on end frequently, it is worth getting. It would be tiring to use it too much. I don't know if an illuminator would improve the light transmission.

Nice selection of reticles but lacking the one I really needed. Will have to dig around to find the right one somewhere else.

I place my order for 3 units, the packing come in different color, the boxes are broken, and I didn't see the brand Fowler in my optic comparator.. I spent 265.11 dollars, and the items looks cheaper.

Preforms as it should. I wish it had a clear unmarked lens included for unobstructed viewing of some details. Very satisfied.