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- the deep Appalachian woods
The Meike 25mm f1.8 arrived about an hour ago, and the first thing was to test it to see how well it did infrared photography. The answer is not perfectly but well enough to be entirely usable. The short version: it's just fine in infrared color up to f5.6, and in black-and-white up to f8 and, depending on the subject, f11. This is shooting 720nm; I do not know how it will do 590 or 850. In that the camera is going soon to Kolari to get its 720nm filter exchanged for a 590, and in that I'm about to order a 49mm 850nm filter, I'll know those things in a few weeks.
But here's what we have now. You'll note the hotspot in color from f16 to f8, but it's all or almost all gone by f5.6 and the lens is good at apertures wider than that. The lone black-and-white was shot at f11 (and I really wish that Meike/7artisans/whoever made a 16, because that building thunderstorm would have been a lot more dramatic with a wider lens.) But these pictures aren't art, they're to see if the silly thing works.
In general, I really like the lens. It reminds me of a 1960s Pentax Takumar in size, feel, and smoothness. The aperture ring is kind of logarithmic, so the distance from f5.6 to f16 is about the same as that from f1.8 to f2.8. Slightly, but only slightly, annoying.
So: here, in order, are f16, f11, f8, f5.6, and f11 black and white. And yeah, I know my sensor is filthy, but I'll let the Kolari folks clean it up when they swap filters.
But here's what we have now. You'll note the hotspot in color from f16 to f8, but it's all or almost all gone by f5.6 and the lens is good at apertures wider than that. The lone black-and-white was shot at f11 (and I really wish that Meike/7artisans/whoever made a 16, because that building thunderstorm would have been a lot more dramatic with a wider lens.) But these pictures aren't art, they're to see if the silly thing works.
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Join to see EXIF info for this image (if available)
Join to see EXIF info for this image (if available)
In general, I really like the lens. It reminds me of a 1960s Pentax Takumar in size, feel, and smoothness. The aperture ring is kind of logarithmic, so the distance from f5.6 to f16 is about the same as that from f1.8 to f2.8. Slightly, but only slightly, annoying.
So: here, in order, are f16, f11, f8, f5.6, and f11 black and white. And yeah, I know my sensor is filthy, but I'll let the Kolari folks clean it up when they swap filters.