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The TTArtisan 11mm F2.8 Fisheye (300 euros) is a Compact stereographic fisheye with very good sharpness on the entire frame when used outdoor at F5.6 , and even excellent at F2.8 in the centre for close subject By f/5.6 I'd say the corners get to good. Given that the DOF markings on the lens would suggest that 2 feet to infinity would be in acceptable focus at that point, it's quite possible to get edge to edge results that look very good with this lens. I'd say that the lens is best at f/5.6 whether you're using it in close or with subjects at far distances, so there doesn't seem to be any optical favoring with distance that we see in some lens designs.
Bokeh: You're not going to select or use this lens for its bokeh. One reason for that is it has so much depth of field in most uses you just won't see truly out of focus areas. If you move to the 7" (0.17m) close focus distance and use f/2.8, sure, long distances are now not in focus, but they're also not distinctly out of of focus, either. So if you're thinking "special effect" by shooting close and fast aperture, be ready for a very busy and somewhat distracting "bokeh." Bokeh balls, if you can produce them, have a distinct bright edging, but very little cats eye effect as you move towards the corners. Not terrible, by any means, but not quite as much "juice" as I'd like when trying to pull off a near/far differential. Even at longer distances loCA are hardly a problem, if you zoom in to 100% you can see a bit of color fringing but nothing that will ruin a shot. Alternatives With the sun close to the corner or just out of the frame the situation is worse though – as is the case with most lenses by the way. Wide open we have some patterns that look like internal reflections that go away on stopping down (see comparison above). I’ve written here before. I’m a still life advertising and event photographer based in Japan. I do weddings, embassy powwows, corporate events, audiophile meet-ups, and shoot everything from jewellery to headphones. If you want to see, read, or listen to my opinions on lenses, cameras, and audio doo-dads, by all means hit me up at my blog: ohm image, and my YouTube channel: Fauxtaku Lounge.
Summary: Available only for mirrorless cameras, the TTArtisan 11mm fish-eye works well for several types of astrophotos, and is affordable enough to include in the kit bag.
Fisheye design renders an immensely wide angle of view to produce distinct visual appeal characterized by dramatic distortion and a creative depiction of space. Open full-size image in new tab. Same image at f/2.8 with 200% zoomed-in crop boxes showing star performance. Significant coma and loss of sharpness in corners. Some chromatic abberation. Open full-size image in new tab. 2 min. single exposure at f/3.5, ISO 1600, Canon EOS Ra, Bortle 3 sky. Whatever the limits of my abilities, the fun-factor of using a fisheye is unlimited. This bad boy covers 180º, with a bright 2,8 maximum aperture. Talk about fun. I’m sure loads of you out there know what it’s like to shoot fisheye lenses. Move a little and the entire frame changes. Sag a shoulder slightly and the horizon bolts down. Because it covers 180º and does the bulbous fisheye thing, you have to remember a few things: Let’s clear the air: I’ve never before used a fisheye lens. In fact, so lost and daunted was I by the prospect of using one that time and time again I delayed publishing this review. Prior to it arriving I boned up on how to shoot a fisheye lens. Hints came from the general internet as well as from the comments section of Fauxtaku Lounge. I’m still not confident that the examples I shot really get the picture across, but I hope I’ve learned a thing or two and that this review will help someone. Thanks to everyone for the advice and help. The lens's manual focus design permits working with subjects as close as 0.17m away, which broadens the possibilities of the subject and makes the picture appealing.
Star Tests
This is only the second fisheye lens being reviewed here, so it might make sense to have a short look what differentiates a fisheye lens from a normal ultra wide angle lens. Most of this section is taken from my TTArtisan 11mm 2.8 Fisheye review.
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