Joined in 2023 
82 
63 About this deal
The optical design is rather complex, the MTF claim great performance across frame already at f/2.8 and I don’t see any decentering issues with this sample, so what happened? Proper rangefinder focusing would make all of this simpler, at least on an M, whose EVF and live view are stuttery messes. Other mirrorless cameras fare better, but not better enough to ensure reliable focus speed and accuracy. Yes, zone focusing works fine. Yes, stopping down yields deep focus. But none of that is as accurate or fast as focusing through a discrete rangefinder. The lens comes with an external 11mm metal viewfinder (very helpful if you don’t have live view, no frame lines in the viewfinder): The TTArtisan 11mm f/2.8 Fisheye is a manual focus lens that delivers 180° across the diagonal of the frame, what is sometimes called a "full frame fisheye." Full frame in that instance means that the fisheye produces image data all the way into the corners of the frame, and not a circular image as traditional fisheyes do.
Focusing and aperture rings are smooth but a little bit too tight for my taste (some like it that way), I have the feeling they will loosen in the future The Fisheye-Hemi Plug-In automaticaly remaps your fisheye images to minimize distortion and maximize the preservation of all image details. very simply do first all your exposure/color correction and then Export to Fisheye-Hemi plugin using the “full frame” option Later on in the evening, the TTArtisan 11mm f/2.8 fisheye lens was great for capturing the atmosphere of the event too. I’m not sure I would use a lens like this to photograph an event professionally, but I could definitely see me using this lens for this sort of thing again. It was undeniably fun, and despite the whakyness, I can’t help but really like the result – and taking them was a lot of fun too, especially after a drink… What confused me while I was browsing through the various discussions and articles is that while the manufacturer is stating that the lens is 11mm, which should be pretty ultra wide on a full-frame lens, that in reality it is more like 15.6mm, which suggests that it actually was meant for a DX/APS-C "crop factor" lens. If I were buying a lens that was supposed to be 11mm on full frame I would want it to be just that rather than 15.6mm. Then again I suppose when one gets into the wide angle realm it really doesn't make that much difference; I really don't know, as wide angle/ultrawide angle/fisheye has not been something I've explored much through the years.Le plugin corrige votre image fisheye avec un algorithme complexe en minimisant la distorsion et en maximisant la preservation des détails de l’image Les principales différences sont expliqués ci dessous. : caractéristiques, angle de vue, piqué et bokeh
For it's reasonable price, this lens is probably a bargain. I have no problems recommending this lens to someone who's interested in exploring the full frame fisheye world. Just realize that (1) you'll be manually focusing, (2) you have to account for field curvature with some subjects, and (3) you'll going to want to do both distortion correction and chromatic aberration correction of the final images.Vignetting: Definitely there and visible, but quite frankly far better than I expected (it's something around 1.5 stops wide open, and it's under a stop by f/4). As sometimes happens with really wide lenses on digital cameras, there's a very small amount of color shift in the extreme corners, as well, probably due to crossover pollution from the Bayer filtration when light hits at a non-telecentric angle. The AstrHori 12mm 2.8 Fisheye was kindly provided free of charge by AstrHori for reviewing purpose for a few weeks. What is a fisheye lens? So far I’ve taken the TTArtisan 11mm f/2.8 fisheye out in anger twice. The first time was for a bit of test around the edge of some woods and near where I work in Worcester. I didn’t really have any set ideas about what I wanted to do with the lens as I set out, short of just getting to grips again with the nature of such an unusual lens. With our usual approach we cannot get decent values on the vignetting of fish-eye lenses. What I can tell you is that the vignetting figures are significantly lower than those of rectilinear ultra wide angle lenses, especially compact ones. Sony A7III | TTArtisan 11mm 2.8 fisheye | f/8.0 When shot wide open at f/2.8 the old Canon 15mm was rife with coma at the corners. The Rokinon 12mm had less off-axis coma than the Canon but it was mixed with some astigmatism and softness. The TTArtisan had worse astigmatism than the Rokinon but crisper star images overall. Stopping down the lenses to f/4 improves the lenses’ performance but some astigmatism remains in the TTArtisan. Credit: Alan Dyer
Stopped down to f/4 all the lenses improved at the corners, though the TTArtisan still showed some astigmatism. The Rokinon 12mm does provide a slightly wider field of view than the 11mm TTArtisan, despite its 1mm longer focal length. The video portion of this review along with a different selection of photos and short videos can be seen in this video: TTArtisans 11mm f2.8 fisheye on Leica M10 Fujifilm X-T3 and GFXAdd to that the following problem: I no longer have the accessory EVF. I hated using it. The M’s live view is pants, going too fast to jello, slowing way down in low light, and getting in the way of other, more important accessories. There is one factor that makes the decision to add up though: quite simply, no one else makes one. At least as far as I know, TTArtisan are the only brand to have ever offered a fisheye lens for m-mount cameras. So if you’ve always had a craving for such a thing, the craving can now been answered… I haven’t used this one. In terms of weight and size it sits inbetween the aforementioned AstrHori and this TTArtisan lens. Open full-size image in new tab. Same image at f/3.5 with 200% zoomed-in crop boxes showing star performance. Huge improvement in sharpness of stars in corners/edge. Still some chromatic abberation and coma, but not obtrusive. Open full-size image in new tab. 2 min. single exposure at f/4, ISO 1600, Canon EOS Ra, Bortle 3 sky. Flare: Decent if the light source is somewhat centrally located. Put the light source towards a corner, though, and things get really complex, with everything from prisming to colored ghosting occurring.
However, while some lenses behave badly when refocused with clip-in filters, the TTArtisan still showed good star images across the frame, trading the astigmatism at the corners for mild coma and some image softness. With no automatic lens profile available, correcting vignetting required dialing in manual corrections, here +60 Vignette and 0 Midpoint in Adobe Camera Raw. Credit: Alan Dyer Note: I have seen some samples from others on the Web that show that there may be some sample variation. My sample seems well-centered and doesn't tend to smear corners but just blur them. I've seen examples from others where there must have been some de-centering or element variation. At 15.4 ounces (436g), the lens isn't light, but it's also not exactly what I'd call heavy, either. The smallish size and metal construction mean that it feels a bit "dense" in the hand. My final shot of the outing was shooting up into this tree. I’d been shooting with the add-on Visoflex viewfinder and whilst up until this point I had found its articulation useful, I’d not found it essential. For this particular shot, the fact that the Visoflex articulates 90 degrees upward was very useful indeed. I held the camera in front of me pointing directly upward and yet was able to shoot with my eye to the viewfinder with comfort. The wide-angle design is also complemented by a bright f/2.8 maximum aperture, to suit working in available lighting conditions.
Open full-size image in new tab. Same image at f/5.6 with 200% zoomed-in crop boxes showing star performance. Not much improvement to stars over f/4. Open full-size image in new tab. Commentary A fish-eye is also great for taking in the Milky Way from horizon to horizon and for circumpolar star trails. I’ve also used such lenses during total solar eclipses to capture the passage of the Moon’s shadow across the sky. The TTArtisan lenses are part of a new generation made only for mirrorless cameras. None of their lenses, including the 11mm on test here, will fit on DSLR cameras. They are designed to make use of a mirrorless camera’s short “flange distance” from lens to sensor, which allows for a compact lens yet with fast aperture. Open full-size image in new tab. Same image at f/4.5 with 200% zoomed-in crop boxes showing star performance. Not much improvement to stars over f/4. Open full-size image in new tab. 4 min. single exposure at f/5.6, ISO 1600, Canon EOS Ra, Bortle 3 sky. There was little, if any, coma, the aberration that flares stars into winged seagulls, and only a small degree of lateral chromatic aberration that adds colorful fringes to stars. Performance was consistent at all corners; there was no sign of defective lens de-centering. Comparison of the new TTArtisan 11mm to the old Canon 15mm and current Rokinon 12mm for off-axis star images wide open at f/2.8. Credit: Alan Dyer
Great Deal 
New Comment