How to calculatefocal lengthof convex lens

Focal lengthto magnification calculator

Absolutely not. You will at a minimum need to go to steel or steel look aluminum. But the price as I mentioned about will be 10X PGT

Could anyone recommend a source? I’m currently looking at PGT windows but having a hard time visualizing their options (hence this post).

Could someone advise what frame/grid width I should look for? For example, is a 2” frame width considered narrow, or is that on the wider end of the industry range?

Focal length finderlenses

I’d like to install thin frame black windows in my home. The attached photos describe the look that I’m after… sleek/slim as opposed to large/chunky.