Temperature Compensation with lenses

Started 8 months ago | Discussions thread
SkySpades Regular Member • Posts: 222
Re: Temperature Compensation with lenses

elgol20 wrote:

Hi,

how often do you refocus with temperature with your telephoto lenses alike Sigma Art 105 or 135mm?

I like to refocus every 2-3 degrees F temperature change. This time of year the temperature can change fairly drastically between dusk and about midnight at my location so adjusting focus a few times during that period is a must. After midnight the temp may only drop a couple more degrees until the low just before sunrise.

 SkySpades's gear list:SkySpades's gear list
Nikon D500 Tamron SP 70-200mm F/2.8 Di VC USD Tamron 15-30mm F2.8 Nikon 200-500mm F5.6E ED VR Sigma 50-100mm F1.8 DC HSM Art
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