Equivalence: How to compare different camera systems

As you may know, to compare lenses of different camera systems in terms of angle of view, the focal length often needs to be converted to an equivalent value. What about aperture and depth of field or the expected amount of noise? Are those values also comparable and if so, how?

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The 35mm curse on Sony E-mount

The first full frame E-mount camera was introduced in 2014 and Sony and Zeiss have been releasing new lenses ever since. Also other manufacturers have started to create lenses for the E-mount system. The lens lineup has reached a pretty good stage, but some obvious gaps still exist. First of all, there is currently only one true telephoto lens (the 100-400mm GM), and secondly, there is no 35mm F2 with autofocus. What? Seriously?!

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Patona Premium replacement battery for BLH-1

When it comes to third party camera batteries, Patona has been my first choice so far. They are very affordable and typically have a comparable capacity as the original battery. In the following, we are going to have a quick look at the Patona Premium BLH-1 compatible battery for the Olympus E-M1 Mark II. Continue reading Patona Premium replacement battery for BLH-1