Wugmeister@lemmy.dbzer0.com to Ask Lemmy@lemmy.worldEnglish · 2 days agoWhat stocking stuffer gifts do you think are cool?message-squaremessage-square37fedilinkarrow-up187arrow-down11file-text
arrow-up186arrow-down1message-squareWhat stocking stuffer gifts do you think are cool?Wugmeister@lemmy.dbzer0.com to Ask Lemmy@lemmy.worldEnglish · 2 days agomessage-square37fedilinkfile-text
Specifically looking for nerdy knickknacks like magnetic viewing film that a fellow autist would appreciate
minus-squarearamis87@fedia.iolinkfedilinkarrow-up4·2 days agoWhat level magnification are you getting, and is there much distortion when using it to read (or to examine objects)? The only thing I know about Fresnel lenses are lighthouses!
minus-squareover_clox@lemmy.worldlinkfedilinkarrow-up8·edit-22 days agoI’m not sure exactly, but I’d guess about 2x magnification, and text is totally legible and easier to read. The focal point distance for sunburning/fire is about 7cm. The lens part itself is 6cm x 5cm. Yes I did some measuring…
What level magnification are you getting, and is there much distortion when using it to read (or to examine objects)? The only thing I know about Fresnel lenses are lighthouses!
I’m not sure exactly, but I’d guess about 2x magnification, and text is totally legible and easier to read.
The focal point distance for sunburning/fire is about 7cm.
The lens part itself is 6cm x 5cm.
Yes I did some measuring…