Help needed with wide angle/fish eye lens
Discussion
As per previous post I'm planning on taking some "marketing" shots of chalets (possibly virtual tours).
I've now bought an 8mm Sigma lens for my Nikon D80 and started to play.
The thing is that I'm not too happy with the results so what's the technique?
Here's possibly the best effort thus far of my living room.....
My issue is that it looks too distorted are you supposed to crop out the bits you actually want?
ANy advice greatfull received!
I've now bought an 8mm Sigma lens for my Nikon D80 and started to play.
The thing is that I'm not too happy with the results so what's the technique?
Here's possibly the best effort thus far of my living room.....
My issue is that it looks too distorted are you supposed to crop out the bits you actually want?
ANy advice greatfull received!
Hi Marcellus,
My advice would be to ditch the fisheye and go for something like the Sigma 10-22, you will only lose 2mm(3 taking into account the Nikon digi crop)but you will get a full photo rather than the circular one shown, the front element of the fisheye is convex and so thats why you are getting the circular photo as oppose to the full photo. I think the uprights of the doorway etc will be less distorted using that lens too, due to the flatter lens first elemment.
Hope that helps.
My advice would be to ditch the fisheye and go for something like the Sigma 10-22, you will only lose 2mm(3 taking into account the Nikon digi crop)but you will get a full photo rather than the circular one shown, the front element of the fisheye is convex and so thats why you are getting the circular photo as oppose to the full photo. I think the uprights of the doorway etc will be less distorted using that lens too, due to the flatter lens first elemment.
Hope that helps.
cracking lens.I've got the Sigma 10-20 on a Canon. Love it, it does a kind of linear distortion
I think if you're looking at viewing rooms though, a less wideangle lens and some 'photostitching' might give a result more suited to a commercial site, just a thought.
One note with the sigma, on it's widest setting, from a corner of a room, you'll pretty much get all 4 walls in. If you use flash, you'll get wicked fall off (so I guess, don't!)
I think if you're looking at viewing rooms though, a less wideangle lens and some 'photostitching' might give a result more suited to a commercial site, just a thought.
One note with the sigma, on it's widest setting, from a corner of a room, you'll pretty much get all 4 walls in. If you use flash, you'll get wicked fall off (so I guess, don't!)
I haven't done it myself - that was just the first example I came across on eBay. I bought mine from Warehouse Express.
If you search on here you might be able to find a few threads about buying from HK. I seem to remember that the overall response from people who had done it was positive. I can't recall how straight forward it was though.
If you search on here you might be able to find a few threads about buying from HK. I seem to remember that the overall response from people who had done it was positive. I can't recall how straight forward it was though.
Another option would be the Nikon 10.5mm fisheye. Shooting with that lens gives you a full 180 degree field of view with the fisheye effect, but it is a frame filling lens meaning you don't get the black circle effect in the centre.
Best bit is that when you process the images in Nikon Capture you can convert the images so they are rectilinear (they are corrected so the lines aren't bent)
Cracking lens and you are getting 2 lenses for the price of 1 (fisheye and rectilinear corrected extreme wideangle)
Best bit is that when you process the images in Nikon Capture you can convert the images so they are rectilinear (they are corrected so the lines aren't bent)
Cracking lens and you are getting 2 lenses for the price of 1 (fisheye and rectilinear corrected extreme wideangle)
heelantoe said:
Another option would be the Nikon 10.5mm fisheye. Shooting with that lens gives you a full 180 degree field of view with the fisheye effect
The Sigma 8mm is a full frame lens and is 180 degree on a FF camera, so I dont see how a 10mm nikon could be.Any fisheye will distort severely, if you want to do 360 rooms your better off with a tripod a 30mm or so lens and a panoramic head and stitch.
Alternatively, if you're not averse to some serious experimenting with quite powerful but not 100% userfriendly programs, google for "defishing software" and look what you find. As Rob D said, a fisheye is specifically to obtain the "look" shown in your picture, but you can calculate a linear picture from it, with e.g. PTGUI; Nikon Capture can do it as well but only automatically for Nikon lenses, I think. YMMV; you will lose definition at the edges because the image will get strongly stretched there.
Echo the comments on the Sigma 10-20, great lens that is indeed. You will get distortion though as well, but not nearly as extreme as the fisheye.
Maarten
Echo the comments on the Sigma 10-20, great lens that is indeed. You will get distortion though as well, but not nearly as extreme as the fisheye.
Maarten
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