May 24, 2013, 01:36:19 AM

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Topics - mrsfotografie

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Third Party Manufacturers / Digital Film (for use in old camera's)
« on: April 01, 2013, 04:08:40 AM »
I received some information that a large Japanese camera manufacturer is working on a digital film (that's right, film) that can be used in traditional analogue camera equipment.

The film uses a new type of binary image sensor technology that allows images to be captured and stored on the film without the need for electrical power to retain the data. Until now, imaging sensor technology has been limited to the use of volatile memory, necessitating the use of traditional CMOS or CCD imaging sensors and storage of the captured data on internal flash drives.

Binary image sensor technology is reminiscent of traditional photographic film. Each pixel in the sensor has a binary response, giving only a one-bit quantized measurement of the local light intensity. The response function of the image sensor is non-linear and similar to a logarithmic function, which makes the sensor suitable for high dynamic range imaging.

After exposure, the film is advanced in the same way as traditional analogue film.

When the digital film has been fully exposed, the roll is removed from the camera and connected to a computer or smartphone using a USB interface. Each stored image is read out successively and sent to the computer. The film can then be 'formatted' for re-use.

One roll can hold up to 24 images, but with advances in digital film technology it is expected that  higher storage capacities will become available when the film can be made thinner and wrapped more tightly.

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Lenses / Canon EF 35mm f/2.0
« on: March 30, 2013, 11:42:46 AM »
Now that the Canon EF 35mm f/2.0 is officially discontinued but still available new at reasonable prices, I'm tempted to get one of these small primes before they become unavailable. The question however is if it's worth it.

I previously had one that I purchased second hand. It was on old, tired lens from 1990 or so and the performance was not what I expected from it, especially when compared to my fantastic 50 mm f/1.8 Mk I. So thinking it was a dud, I sold it on.

What's your experience with recent copies of the 35 mm f/2?  And how should they compare to the 50 mm f/1.8 Mk I? Intended use is on full frame as well as crop.


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So, I now have a Sony Nex with a 16-50mm zoom and a 30mm f/2.8 prime as a small-size quality alternative to the 5DMkII and 7D. With an FD adapter I can mount (amongst other old Canon lenses) a Canon 70-210mm F/4.

Left in my collection of kit is a 400D body (with firmware hack: http://code.google.com/p/400plus/) and a very new EF-S 18-55mm f/3.5-5.6 IS II, and EF-S 55-250mm f/4-5.6 IS II.

I cannot really make up my mind on what to do with this kit I've sitting around - sell it or keep it? Not sure If I will find a need to use it again. I guess the 400D is not worth much money these days, and selling the two lenses I mentioned means a loss so I'm not comfortable with that.

What would you do? Keep this stuff around or get rid of it?

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I've recently acquired a Sony NEX-6 because I wanted to get a good (APS-C) compact system camera and Canon isn't quite there, yet. The last few years I've been pretty loyal to Canon, until now.

What other camera brand do you actively use, other than Canon? If you like, please specify which model and why.

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Lenses / No AF: Broken flexfoil in 18-55mm f/3.5-5.6 IS
« on: August 04, 2012, 02:04:24 AM »
Yesterday the AF on my 18-55 IS MkI suddenly became erratic and then stopped working. A quick search on the net shows this to be a common problem because the flexfoil that gives the focus ring position eventually breaks due to poor design. Disassembly showed this indeed to be the case on my copy.

I would like to replace the 18-55 with a Mk II version. Filter & hood I can then fit on the new one. Does anybody know if Canon fixed this problem in the new release of this lens?

Note: The 18-55 I use with my 400D when I want to travel with a light & 'expendable' kit. Not really inclined to use a more expensive lens for this purpose :)

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