This one was on Explore for a little while apparently (Explored on 2019.01.30, #455), but now has fallen in the dropped class...
Pentax K-1 with Irix 15mm ƒ/2.4 Blackstone (1/640s), F11, ISO100
Grands froids au Québec / Quebec's cold weather (comparaison d'objectifs / Lens comparison)
An it's part of an experiment I did to compare the sunburst effects with 2 different FF primes (see details x-posted below)
This arctic winter scene has been captured with the Pentax K-1, using two different lenses at 2 minutes interval (Note: Both were at ƒ/11 and ISO 100, only the shutter speed is different).
One lens has a 43mm focal lenght, and can be considered as a "real-life size view", and the other is a 15mm wide-angle lens.
The photo taken with the 15mm has been heavily cropped to match approximatively the other photo (slight) cropping, but the final resolution is signicantly affected, e.g. the 43mm has seven times more pixels than the one taken with the wide-angle lens.
Also note the different "starburst" effect, that is dependent of the number and the roundness of aperture blades.
The other shot below wasn't selected in Explore (one per day is okay anyway :-) )
SMC Pentax-FA 43mm F1.9 Limited (1/2500s)