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04-11-2013, 06:28 AM   #1
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Just an other kinda FF idea

We all know Pentax is having a huge problem with releasing FF because of there lens line up (only a few FF lenses are still in production) and the choice of shake reduction or not (if they go for SR they'll have to design a new camera body while the K5's body is almost perfect, but if they don't go for build in SR they'll have to start implementing SR in there new lenses).

The only way to overcome these problems fast is by doing the following:

You take the K5-II body + an APSC 24MP sensor + a piece of glass which you screw into the lens mount.

This piece of glass converts the field of view by magnifing (telconverter use) or widening (so you can use fullframe lenses the way they are meant to be used). *These are 2 seperate pieces of glass off coarse, just pointing out that Pentax still has no teleconverter in production.
An example of a product that does this: Speed Booster? : Contarex Lens to Fuji X SpeedBooster
The extra plus here is that the FF leses you put on actualy gain a stop of light (while teleconverters lose light). Other conveniences are that Pentax still would keep the same AF and diafragma control (which Metabones has problems with as there product is outside the camera).

It should be possible to fit the glass element into the lens mount, the way sigma cameras have there IR filters screwed in.
The only major problem and yes, I know it's major, is that Pentax cameras don't just have that space for nothing, it's because we have the aperture control of our lenses sticking out ...

One way to resolve this, is to make a mirrorless camera, the Pentax K-01 is a good example of how much space you have inside once you take out the mirror. Now is the question only if they could sell those to the public, the EVF would have to be bloody good for me to consider one. An other option is making some place in the lens mount to fit a glass element in, but even then I'm not sure if it's possible to make the view you get throught the OVF match the actual outcome.

If Pentax could pull it off, they'd have an APSC camera which you can convert to a "FF-like" camera. Giving them the possibility to build up there line of digital FF lenses before brigning out an actual FF camera.
We would be able to use all the legacy lenses (and the AF limited lenses) the way they are meant to be and gain a stop of light. Just imagine your 31mm limited f/1.8 lens on a digital body actualy giving a focal size of 31mm and a diafragma of f/1.4! Also we'd still have all our DA lenses working just fine (or magnified with the teleconverter element )

This would be the perfect all around camera, from landscape and architecture to birding and ultra tele work.

04-11-2013, 07:35 AM   #2
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Why not just bastardize a 645D
04-11-2013, 08:09 AM   #3
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Basicly Pentax stated that they would not compromise image quality by putting something infront off the sensor (like SLT). So I don't see this happening.
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