Light direction and ranging accuracy

[Franklink]

Is it this one?
View attachment 575174

Great for detecting breezes too.

Only problem is that if it fits too tightly you end up in the next county if you catch a gust.

 

[cavedweller]

Is it this one?
View attachment 575174

Well you have the general idea, but, the above hat would get me permanently detained or deported before i get to the match.

 

[BC]

The Bisley eyecups can be hard to find but work well with glasses, even with my oversized shop teacher safety glasses. Takes some work to get the angle and eye relief adjusted but helps me block the sun without the hat causing me to sweat. As a bonus, your eye is always in the same spot and eliminates parallax errors the Bisl

The Bisley eyecups can be hard to find but work well with glasses, even with my oversized shop teacher safety glasses. Takes some work to get the angle and eye relief adjusted but helps me block the sun without the hat causing me to sweat. As a bonus, your eye is always in the same spot and eliminates parallax errors

the Bisley eye cups can be obtained from DAVID SLADE/AIRGUNWERKS, in Tennessee......

 

[SacramentoSam]

I know you’ve decided on a hat @cavedweller, I can see why- it seems like the eyecups have a tenancy of going out of adjustment getting cockeyed in the case, having the RTV that you glued it on with come loose during a match. In my case, sitting position and off hand position need the cup to be twisted a bit… but if I do that it moves the ocular focus.
been thinking about this every since you posted and last night, I think I came up with a solution. Many of us have 3D printers or access to a friend with one—- I printed a tube that just fits over my scope and has a stop in it so it goes to the same place every time it is friction fit and can easily twist without affecting the ocular. It slips off so that it doesn’t get tweaked in my gun case. Much easier to slip the eye cup onto the tube rather than onto the scope for me. I’ll probably fancy mine up a little bit and move the DOPE sheet from the scope to the eyecup adapter.

View attachment 575546

 

[Hateful McNasty]

Shooting irons it makes a lot of difference how hhe suns position reflects off the gun its sights the target and the background .

My buddy after the fact said i should of used a solar map / calculator like used for solar panel insalls to position my bench to get the best all day angle . Another said its like the old gunslinger keeps the sun to his back ...lol but ya, how the suns positioned through out the day is make or break on sighting clarity.

 

[Croxton63]

The Bisley is very secure (nothing else is needed) unless you trim it too much, then you can have issues since it's not on the scope in a meaningful way. There is a very long thick rubber sleeve on the eyecup that helps it naturally align to the eyepiece.

I'll know pretty quick that the eyecup is misaligned, i've seen people blow most of their box time trying to find the proper eye relief or to find a way to block light due to not having an eyecup. An improperly installed or partially falling off eyecup could be even worse than not having one...

I have an unmarked eye cup that has an accordion like section and its demonstrates all the issues you mention in one compact inexpensive product... I recommend the Bisley specifically because it has all the good things going for it...

My Bisley arrived yesterday, and there’s always learnings with new stuff. One thing that surprised and pleased me about it was its benefit in standing and kneeling shots. I hadn’t realized how much time I was wasting holding the gun out while finding eye relief. The eyecup must have easily took a second or two off that which might not sound like much, but it meant that I could get shots off quicker and fell apart on fewer of them.