type of lens ( glass or plastic ) ?
103974
The lens is actually a polycarbonate which is a optical quality material and virtually unbreakable. It is actually a lighter and more expensive material than glass.
619076
I'm pretty sure the lens is plastic. It is very light weight. I have found it to work very well for my close-up beadwork
1970619
There are two types one without glass for use with macro setups and one with a corrective lens installed to correct for the new focal distance. In any case, the lens will only work on manual mode as the mechanical and electrical auto linkages are not maintained. I have read that the optical element can produce inferior images. I have the glassless type. However I got one with the corrective lens to mate older canon lenses to my digital nikon and it works well. Don't worry about different screw types..the newer pentax mounts are bayonet.
1309137
Plastic. Nobody these days has the "balls" to sell the glass ones we grew up with. Remember the metal Lawn Jarts?? :)
363692
Plastic lens...recommend a bead of silicone around it to waterproof. Also remove round sticker on back for cooling.
272838
As far as I can tell the lens is made of glass. It states it in the product description. the head that holds the magnifier and lamp is plastic and the light does have a covering. I have worked with this type of lamp for many years and am very happy with this purchase. Hope this helps.
512194
The lenses are glass, and the housing is aluminum. I don't remember much plastic on these.
1424290
Sorry but I don't think I can give you a definitive answer. I thought it had a glass lens but I just went and looked and I can't tell for sure. Whatever it is, it was a good match for my needs and much less than the dealer wanted to charge.
1949493
It's glass. I really dig this filter. It's light, but works well. It allows for a lot more flexibility during the day in terms of what aperture you wanna use and it can also be useful for cinematic effects like a white out, or dip to black.
283159
they are plastic. What I figured out how to use them I have had a blast with these things. I use them with my stock lens. I went online and found out how to use them properly and I have gotten some very good macro shots although I do have to focus everything in manual I'm enjoying playing with them and experimenting with my photography.
1052873
The lenses appear to be glass, the case is plastic.I will add that this has been a very worthwhile addition for night spotting out to 100 yards.
947651
Both. a Metal Plate screwed into the body of the lens. a Plastic ring protrudes out the center of that plate and engages the camera body. The plastic ring has metal connectors which come out its sides to engage the camera.
1737029
The actual magnifying lens is made of a thick quality glass. The lens covering the light tube is plastic.
1045828
They are glass, but when I screwed them on they kept popping of the lens, not sure if I just got a bad batch or what. I did like that you can put each one in its separate slot, but was disappointed with the quality. Hope that helps.
2280986
It is a prism type lens. A prism system shortens the focal length.http://www.carsonoptical.com/Monoculars_and_Spotters/Monoculars_and_Spotters/CF-718
815864
580PC lenses are Polycarbonite lenses. The 580G lenses are Glass and more expensive. Both are great, polarized lenses and the PC is much stronger than a standard plastic lense.
823896
As far as I can tell, yes, the lens is glass, and not plastic. I have been pleased with this magnifier which I purchased to read hallmarks on sterling silver. It works well both due to the lighted magnification, but also because it is small and thus fits into tight spaces.