Ozzie_Traveller
No longer a newbie, moving up!
- Joined
- Aug 19, 2022
- Messages
- 435
- Reaction score
- 468
- Location
- Eastern Australia
- Can others edit my Photos
- Photos OK to edit
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White lenses absorb less heat from the sun and that keeps them cooler when they are in the sun. We want to avoid getting the lens hot. Lubricants can run and components will expand which can alter the exact spacing of the elements, reducing IQ.I have heard one of the reasons Canon's luxury lenses are white is to reduce the effect of heat on thjem. I think the other is marketing.
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Yes, I am aware.White lenses absorb less heat from the sun and that keeps them cooler when they are in the sun. We want to avoid getting the lens hot. Lubricants can run and components will expand which can alter the exact spacing of the elements, reducing IQ.
It could help their marketing too.
Of course heat shimmer in the air is something entirely different. It typically occurs far from the lens. A white lens can't help with that.
But some recent reports suggest that a lens hood can trap warm air and create local heat waves causing blurriness. A white lens hood might suffer less from this.
I'll need to remember the lens cap. I had some photos from a recent trip that were all "fuzzy" except for a few. I told my wife it had to be the heated air effect through the distance.White lenses absorb less heat from the sun and that keeps them cooler when they are in the sun. We want to avoid getting the lens hot. Lubricants can run and components will expand which can alter the exact spacing of the elements, reducing IQ.
It could help their marketing too.
Of course heat shimmer in the air is something entirely different. It typically occurs far from the lens. A white lens can't help with that.
But some recent reports suggest that a lens hood can trap warm air and create local heat waves causing blurriness. A white lens hood might suffer less from this.