On Apr 20, 2023, at 11:56 AM, Jon <kd5sfa@...> wrote:

Semi off topic but does relate to the group and camera use.

I wear multi-focal contacts being I am very nearsighted. They work fairly well and keep me from having to wear readers in my truck at night to be able to read the dashboard of the truck. They also reduce the number of time I have to put the readers on when out and about where there is sufficient light. The joys of presbyopia and middle age.

Lately I have found I still need to put readers on when making adjustments to the camera or reviewing the images on the camera so I tend to be putting the readers on multiple times when in the field for mere seconds at a time. Being I also have a slight astigmatism that is just below what they can correct with contact lenses I have to deal with that. I had a thought the day before my semi annual optometrists visit concerning getting a pair of glasses to wear over my contacts usually when I am out shooting. The upper part of the lenses would correct the astigmatism only and the lower would add a +2.00 for up close work like reviewing images.

The doctor wasn’t sure if it would work and had to think a few minutes about the concept. We tried holding 2 glass disks with the proper astigmatism correction in front of my eyes with the contacts in while looking at an eye chart. It actually improved things quite a bit. The letters while recognizable without the additional correction improved by not being as fuzzy. Not perfect but very noticeably improved. We both learned something from this exercise. I find that to be a win.

I’ve been looking at lenses to place in an older set of frames and I am trying to decide between polycarbonate or glass. Glass having the better optical qualities is where I am leaning in addition to the better scratch resistance.

As a note, I do have a proper set of high index glasses for use when not wearing my contacts. I don’t like them for 2 reasons. The perspective changes like the difference between looking through a 50mm lens versus a 35mm lens. They also have the progressive bifocal which I totally hate.

I have also used OTC readers for years because they are cheap, but they scratch easily and that annoys me. I have not been able to find the half size readers that you can look over in quite awhile. I tend to want to try them on before purchasing. This is another reason I am going down this road.

I will note that the high index polycarbonate lenses seem to do well as far as acuity, just the more extreme refraction causing some differences than with contacts.

Does anyone here have any experience with glass versus polycarbonate in their glasses as far as quality?

On Apr 18, 2023, at 10:33 AM, Zane Healy <healyzh@...> wrote:

?Simply put, I’m loving the results from this lens. ?I had it out on the 29th, and have gotten 8 Coastal Defense Fort photos up on Flickr, and am loving the detail. ?As I’d mentioned a couple weeks ago, this was also my first time using the current 70-200mm as a walking about lens (since buying it last June I’d only used it for a couple reenactments). ?The most recent shot is from the 70-200mm, but the next 8 are from 14-24mm.