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Forum: Troubleshooting and Beginner Help
11-16-2014, 04:22 AM
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Thanks for the hints. I am busy to find these informations about lenses to be adapted. The image cicle will be O.K. when the lens to be adapted is designed for a larger sensor than the Pentax Q-sensor, which is a 1/2.3inch-sensor (6,2 x 4,6 mm). But not for a too large sensor, since my interest is to have a camera with minimal physical dimensions. Lenses for larger sensors, or with bigger image circles will pysically be bigger than necessary.
See sensor sizes:
Glossary: Sensor Sizes: Digital Photography Review, or:
Image sensor format - Wikipedia, the free encyclopedia
So, lenses from 8mm analogue movie cameras will have a too small image circle. See examples in the above link, example pictures have black corners. I have won a camcorder for 1 Euro (delivery costs more). I will see if I can adapt the lens to the Q. Unfortunately I could not find technical information about this vintage camcorder. To me it is interesting to have a wide range zoom which is standard to those camcorders (mainly 8x, sometimes even 10x zoom).
If there are new results I will post them.
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Forum: Troubleshooting and Beginner Help
11-14-2014, 11:45 AM
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Romay, It is not really an alternative to a c-mount adaptor. Vintage video cameras may have a c-mount lens, I dn't know. Anyway, I think of a low budget solution for a good lens.
crewl1, thanks for the tread.
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Forum: Welcomes and Introductions
11-13-2014, 07:42 AM
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I like to take photos. In the early times my best camera was an EXACTA, with a good number of lenses.
But after some years it became just to heavy to carry, and I got me a Minox 35, one of the smallest 35mm cameras. It was very convenient to use, also at bicycle trips. After some years it stopped working and I got me a Pentax Espio, my first camera with a zoom lens. But when digital fotograpy became very popular I changed to a Pentax Optio 750Z. Again, a nice, light, and easy to use camera, and I could still use the remote control from my analogue Pentax Espio.
But still interested in a camera with changeable lenses, I got me, 3 years ago, an OLYMPUS E-PL1. My wife likes to use it as well, but finally she wanted to have a very small, and good camera. So, I got her a PENTAX Q10.
And I must say, the menu to work with this camera is far better, and easier to understand than on the Olympus camera. Only at poor light conditions the larger sensor of the Olympus brings some benefits.
A little bit disappointing is the size of the sandard lens. When not in use, the Olympus lens is almost as small as the Penax Q lens. So, the Pentax camera is not as small as expected as I ordered it online.
But my wife loves it, and we will see what the future will bring.
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Forum: Troubleshooting and Beginner Help
11-13-2014, 07:02 AM
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Recently I got a Pentax Q10 for my wife. It is a really neat little camera.
Only the choice of available lenses is very limited. It is very easy to find a c-mount-adapter, or other adapters to mount foreign lenses to this camera. Clearly, none of these adapted lenses will work with autofocus nor automatic aperture.
In most cases you can adapt lenses made for reflex cameras which are very large for the use with this camera, using a special adapter. You will have then -A lens with a camera mounted on it- in most cases. Also, by the crop factor every lens will be a tele lens for this camera.
I ask myself wether it is possible to adapt a lens from a vintage video camera. I did alredy some research: For example, the Sony Triton HVC-3000P has internal a sensor of a similar size, effectively slightly larger. So, if you find an adapter to mount its lens to the Pentax Q you will have a 7x zoom lens for this camera, whithout a crop factor. Is there anybody with experiences in this subject? I think the only question is, to find, or produce an adequate adapter.
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