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Posts Tagged ‘A700’

A few days ago, I had my Minolta AF 50mm f/1.7 lens mounted on the Alpha for some family pictures. (The lens is a 75mm equivalent on the A700, and thus serves as a very fast medium telephoto lens ideal for framing ‘head and shoulders’ shots, especially effective indoors for Available Light photography. I’ll be posting some of the “candid” portraits in another post soon). Anyway, I was out in Carroll County, and driving up on Rte 97 north when I came upon the Union Mills Homestead and Grist Mill.

I’ve documented my use of the Minolta 50mm f1/7 as a landscape lens on my 35mm AF Minolta Dynax 800si on my OlympusZuiko blog since I’ve had great fun with the Minolta 50mm lens in Colorado and other locations. Now that the Minolta is an effective 75mm, its still great for landscape and building photography, especially for capturing architectural detail – it’s a challenge if there isn’t much room, though.

I would recommend a 28mm or 35mm lens on the Sony Alpha for close-up architectural work. For old farmhouses and general scenery where you can step back far enough, the 50mm (75mm) is a fine choice, especially in low light conditions.

These photographs were taken at Union Mills Homestead, just off MD Rte 97 in Carroll County. Union Mills dates back to the 1790’s and has many stories to tell… being on the way to Gettysburg, it saw its share of Union and Confederate activity. You can read all about Union Mills Homestead here. I got to the site late in the afternoon – it was clearing up after a storm, and the post rain sunlight coming through the clearing clouds was bright and clean. Everything had a just-washed clean look.


Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Across the road from Union Mills
Across the road from Union Mills
Union Mills Homestead

Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead
Union Mills Homestead

Photographed with the Sony Alpha 700 and Minolta AF 50mm f/1.7 lens, ISO 200, Skylight filter under a sunny/cloudy/post-rain situation



Creative Commons License
Alphamagic by Ajoy Muralidhar is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.

text and images © 2007-2008 ajoy muralidhar. all product names, websites, brands and technical data referenced are the copyright or trademark of their respective owners. thank you for visiting alphamagic, have a great day!

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Anyone ever hear of D.O. Industries? I had never come across any lenses from them until I suddenly ran into this little beauty on EBay, going really cheap. It seemed to be an enlarger lens, but it had what appeared to be a T-mount type threaded mount. A quick email ( an even quicker response from the seller) confirmed that the diameter of the threaded end was indeed 42mm, so I took a chance on it and picked it up, since I was looking for a 135mm lens that would fit on my Spiratone Bellowscope.

I already have a nice Spiratone 150mm f/4.5 bellows lens, but I’m the curious type, and more than that, the name of the 135mm lens intrigued me. The lens itself is small, and solidly built – probably 4 element (maybe 6). Not sure if it is coated. The body looks old and appears to have seen much use, and the paint has faded, but nice glass. It was probably a workhorse lens on someone’s enlarger for many years. It even came with the retaining ring, which is rare these days.

I did a little bit of research on D.O. Industries, and here’s what I came up. Apparently they were an importer and distributor for Fujinon lenses, and they also sold lenses under their own name (rumor has it that D.O lenses are made by Fuji. The optical quality certainly seems to bear that out).

D.O. Industries was started by a gentleman by name David Goldstein in 1972. The company is still around. They are now called Navitar, and you can read their timeline here. I’m glad they’re still around. They seem to be doing well in the current digital era with new imaging products. Innovate, Evolve or Die, right? The photography marketplace is pretty ruthless, with old-timer companies closing down almost every day.

In case no one’s noticed, practically every 3rd party lens company had names ending with –AR. It seems to have been vogue with photographic companies back in the day. You see products with names such as Vivitar, Albinar, Astranar, Rokunar, Lentar, Kitstar, Macrotar and so on. I’ve often wondered why.

When I tried to fit the lens to a T-mount, I noticed that the thread, while being very close, was just not right. It seemed to be more like 41mm, but the pitch was OK. I got around this by wrapping a piece of light cotton sewing thread on the lens thread, and it works just fine. Curious. As long as it works, I am happy.

The advantage of using a longer focal length lens on the bellows is that it permits a longer “stand-off” distance. A short focal length lens (35mm, 40mm or 50mm) can give greater magnification, but the focusing distance is very short, which means that the light is cut off drastically, and one has to use supplemental lighting. The longer focal length bellows lenses (75mm, 135mm and 150mm) can focus from 18 inches to as far as 3 feet away, which lets a lot of ambient light get to the subject. Besides, there’s room for the tripod legs if the subject is 24 inches or more away.

Since I was trying out this lens indoors, I just used a pedestal lamp with the Sony’s WB setting to Tungsten lamp. I used a Auto ISO setting. The exposure was 1/5 to 1/8 second, and I was able to stop down to f/8 to increase the depth of field. If I were outdoors in natural sunlight, I would have used 100 ISO and a smaller aperture.

The tripod permits the longer exposure without shake. To avoid inadvertent camera shake during release, I used the Sony’s self timer setting (Drive Mode button, and then select self timer 10 seconds). This ensures that there is minimal shake. The Sony doesn’t have mirror lock-up, but it’s superbly damped. The mirror return ‘snap’ doesn’t seem to affect the image in any way.

For subjects, I used some of my wife’s traditional jewelry. Without more ado, here are the pictures

D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700
D.O. Industries 135mm f/4.5 on Alpha 700

The Bellows mounts to my Sony Alpha 700 with a standard Minolta AF-T mount adapter, and the whole thing goes on a cheap Velbon tripod. Nothing special. Here’s the setup.

D.O. Industries 135mm f/4.5 on Alpha 700 Setup
D.O. Industries 135mm f/4.5 on Alpha 700 Setup
D.O. Industries 135mm f/4.5 on Alpha 700 Setup

Photographed with a Sony Alpha 700 DSLR, D.O. Industries 135mm Emlarger lens (Fuji??) fitted on a Spiratone Bellowscope. Auto ISO with Tungsten light WB setting. Exposure was 1/5 second and 1/8 second at f/8 from a distance of about 24 inches. I used a Velbon Tripod.



Creative Commons License
Alphamagic by Ajoy Muralidhar is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 United States License.

text and images © 2007-2008 ajoy muralidhar. all product names, websites, brands and technical data referenced are the copyright or trademark of their respective owners. thank you for visiting alphamagic, have a great day!

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