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Temperature and available light. Which affects your scope more?

While I've never experienced poi shift from my Sightrons, I do experience range shifts. This is mostly due to available light vs ambient temp. I have yet to let my scope bake in the sun, but also have the necessary equipment to keep it shaded during a match so don't see the need.

What scopes have less or more shift as a brand, and model than anyone would like to add here?
 
While I've never experienced poi shift from my Sightrons, I do experience range shifts. This is mostly due to available light vs ambient temp. I have yet to let my scope bake in the sun, but also have the necessary equipment to keep it shaded during a match so don't see the need.

What scopes have less or more shift as a brand, and model than anyone would like to add here?
I have experienced temp shifts that affected ranging on numerous scopes including March and Kahles and Sightrons and Athlon… the trick is to keep them out of direct sunlight to minimize the problem. I also make additional magnetic wheels for my scopes and calibrate them in different temperature ranges <50 - 75, 75 to 85 And 85 to 95 as I live in the Deep South but I still keep them out of direct sunlight when I’m not shooting
 
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I have an adjustable pointer for my scope I got years ago (dont remember now who I got it from) but as the scope shifted you could account for that by moving the pointer up or down some. Works great IF you understand how much the scope shifts and how much to move the pointer.
Maestro Designs carries them - they are called dual pin indicators
 
I have an adjustable pointer for my scope I got years ago (dont remember now who I got it from) but as the scope shifted you could account for that by moving the pointer up or down some. Works great IF you understand how much the scope shifts and how much to move the pointer.
when the shift occurs it can affect the ranging by as much as 3-4 clicks