I add them to my ignore list. I'm hoping for an update someday to UHH so I don't have to see any of their comments.

You should also try searching with Google Advanced Search and limit the search to the domain www.uglyhedgehog.com.

(Download)

Yes, but only under exteme conditions or when I want several photos with the same exposure settings or when indoor lighting is constant.

I don't know about the possible extra battery drain. It might use some power by leaving it on. Now you've got me thinking maybe I should turn it off since I rarely use a remote trigger. However, I always carry two spare batteries anyway, and I doubt that turning remote control off would let me leave the spares at home.

With the A6000, you only have to use the menu once to set "Remote Ctrl" = ON . After you do that, you can use any kind of remote trigger, IR or wired or wireless. It stays ON until you turn it OFF. (Unlike Nikon which turns off the remote release after 15 minutes of inactivity.) I see no reason to ever turn it OFF.

Wikipedia has good summaries for Canon and Nikon.
http://en.wikipedia.org/wiki/Comparison_of_Canon_EOS_digital_cameras
http://en.wikipedia.org/wiki/Comparison_of_Nikon_DSLR_cameras

I keep a copy of their DSLR timelines handy for quick reference.

(Download)


(Download)

The Industar-69 uses a mount similar to the M39 Leica screw mount. So you will need an adapter normally used for Leica M39 lenses. The adapters I have seen are labeled "L39 to something." I paid $8 on Amazon for a Fotasy L39-NEX adapter made in China which has a Sony e-mount on the camera side. Good fit, works fine.

It works fine because the lens had been modified by the Ukranian seller for infinity focus. The Industar-69 mount is not an exact a copy of the Leica M39. The Industar mount is 1 mm thicker than the Leica M39. So when you use the unmodified lens in the Leica adapter, it will sit 1 mm farther from the sensor than it should and you may not be able to focus at infinity. There is a simple modification which reduces the thickness enough to give you infinity focus. I think there is a youtube video. In theory, you could do it yourself if you bought an unmodified lens.

But can you use this lens with a Canon DSLR? Because mirrorless cameras (like A6000) are thinner than DSLR's, there is enough room between the lens and the sensor to put a 10 mm thick adapter and still get the proper distance from the lens to the sensor. You can mount almost any lens on a mirrorless camera with a simple piece of metal which attaches to the lens and the camera. That is the original reason I got the A6000. I'm a Nikon guy and I know you can't easily adapt non-Nikon lenses to a Nikon DSLR. Instead, you always need an adapter which includes an additional lens to change the focus. I suspect Canon EOS cameras are the same. That means you may have to spend a lot more than $8 for an L39-EOS adapter.

I bought my modified Industar-69 on eBay last year from this Ukranian seller (polarislinknetua ):
http://www.ebay.com/itm/INDUSTAR-69-2-8-28-m39-f-2-8-28mm-Wide-Aangle-M39-mirrorless-infinity-point-2/253183308131?hash=item3af2e6b163:g:FfgAAOSwnF9Y6Qwp

Industar-69 adapted to Sony mirrorless

I bought a Jupiter-8 lens (50mm, f/2.0) from Ukraine last year. Less than $50, including shipping. It took 9 days to get to Arizona, and I was able to track the package on-line from the time it shipped. This lens was the stardard normal lens on the Zorki-4 camera, a popular Soviet 35mm rangefinder. The lens is in excellent condition. I use it with a cheap adapter on a Sony A6000. At 5 oz with the adapter, it's a good match for a small mirrorless body. Good image quality, fun to play with, a bit of a novelty item however. The Jupiter lenses are full frame which means I'm only using the center of the image on the A6000 crop body. The Jupiter lenses are quite good, good enough that you might actually use them for "serious" photography.

I also have an Industar-69 (28mm, f/2.8), also from Ukraine for $25. This one had to be modified to enable infinity focus. The Industar-69 was originally used on a "half frame" camera and so it should only be used on a digital crop body such as the A6000. Image quality is good in the center, but fair to poor in the corners.

Zorki-4 with Jupiter-8 lens


Industar-69 lens

I had a similar problem last year with a Panasonic Lumix LF1 fixed lens camera. This thread:
http://www.uglyhedgehog.com/t-436814-1.html

The suggestion by MT Shooter to use a vacuum cleaner actually worked, once I found the right attachment to fit over the lens. I had to do it again 2 months ago - success again.

Give it a try.

I have used this lens with Nikon's TC14 for birds. Image quality is okay but auto-focus is more limited, especially if the bird is moving. I have now gone back to using the lens without a TC.

This adapter doesn't really work. You won't be able to focus beyond about 1 to 3 feet, let alone infinity. I've tried it.

The only adapters which work with Nikon must include a lens to enable infinity focus. Something like this:
http://www.ebay.com/itm/For-Minolta-MD-MC-Lens-to-Nikon-Body-Mount-Adapter-Ring-Infinity-focus-w-Glass/272884353622?hash=item3f892cca56:g:dNsAAOSwYmZXNpQ5

But adding that additional glass element will degrade the image quality - maybe a little, maybe a lot. Some people find it acceptable. I never tried it.

Instead, I bought a Sony mirrorless camera which allows me to use legacy lenses without anything being added to the optical path.

April Fool's Day? The OP only posted two photos and he got nothing but helpful comments or praise.

The don't think you want to use a fisheye lens for real estate. The point of a fisheye is to have fun with the distortion. The "fun house mirror effect" is not what people are looking for in a real estate photo. I think you are looking for an ultrawide lens wider than 11mm on a DX camera. You probably need to go to a full frame camera in that case. Or take 2 or 3 photos with your DX camera and stitch them together into a panorama

I have the 8mm Rokinon with chip which works fine with my D7100. You get a rectilinear image (not circular), but it has tons of distortion. Here's an example photo of my back patio. Note: All lines on the patio are straight, not curved as in this fisheye view.

Ken Rockwell publishes lens corrections you can use in Photoshop. I think this is the link to your lens.
http://kenrockwell.com/nikon/28200g.htm

Recent eBay completed sales have been in the $30 to $50 range for D50 body only.