rebelling_lemming wrote in post #7220257
ok, so payday come today and iv decided up purchase a fisheye lens for my 40d. i have roughly around 500 english pounds. i mainly shoot at night, doing long exposures but also shoot sports such as mountainbiking in dark dingy forrests and indoor skateparks.
the main contenders are as follows:Sigma 15mm f2.8 EX DG Diagonal Fisheye Lens (Canon EF)
- 380 poundsSigma 8mm f/3.5 EX DG Circular Fisheye (Canon AF)
- 530 poundsCanon EF 15mm f/2.8 Fish Eye - 530 pounds im a bit puzzled as to what the differences are as to picture quality etc and fish-eyed ness any examples would be much apreciated and views/comments on each thanks, phil
This is always my favorite topic. I'm a big fisheye junkie, and I have tried a few of the the lenses out there other than the one I own. Here's the skinny.
First off, because of the crop factor of 1.6x crop cameras a 15mm fisheye is a waste of money... the fisheyness is all but gone. So stay away. In order to replicate the 15mm rectangular/full frame fisheye perspective of 35mm you need a 10mm fisheye for crop. There are only 2 offerings that give you this particular look and they are the Sigma 10mm f/2.8 DC EX HSM, and the Tokina 10-17mm f/3.5-4.5 Fisheye Zoom. I suggest the Tokina offering even tho its a slower lens, it is the only fisheye zoom and that makes it much more versatile.
If you want a circular fisheye on crop, you have to answer the following question for yourself - Do you want a little bit of vignetting in the frame (i.e. just the corners) or do you want a full image circle vignette?
If you say you want a little vignetting, then you have 2 options to consider, Sigma 8mm f/3.5 DG EX (or older f/4 if you can find one), or a manual focus 8mm lens (like the MC Peleng 8mm f/3.5 A Circular Fisheye). I own an MC Peleng 8mm f/3.5A Circular Fisheye and it is one of my favorite and surprisingly sharpest lenses. For proof of just how sharp this lens can be, check my Pbase for my favorite shot from it (actually an HDR of 3 handheld shots, so it is a testament to just how sharp it is). The Sigma 8mm f/3.5 DG EX
HSM is a nice lens, but my Peleng is sharper, and focuses better (albeit manually). Plus the Peleng will save you 50% almost against the Siggy.
If you say you want the full image circle vignette, then you have 2 options to consider, Sigma 4.5mm f/2.8 DC EX HSM or the Sunex Super Fisheye 5.6mm f/5.6. The Sigma 4.5mm is a 180 degree lens, the Sunex 5.6mm is a 185 degree lens. The Sigma is faster, but the Sunex has a fixed aperature (i.e. you can't stop it down) this fixed aperature (theoretically) is the optimal sharpness for the lens design, hence the reason its fixed. The Sunex is supposedly much easier to utilize for spherical stitching because of the extra 5 degrees of FOV. But I haven't tried this thing so I can't say if this is so or not. Both cost the same, $899.
My suggestion, get the Peleng 8mm, you will be a bit confused as to how to use it at first, but after a week it will be the easiest lens you've ever used. And its sharp as hell, even at f/4 it is a very sharp lens (I suggest stopping it down from f/3.5 the improvement in sharpness from f/3.5 to f/4 is quite noticeable). I love mine.