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  • Give it Your Best Shot • Re: Will is not strong August 3, 2015
    Sury wrote:Will Not StrongCongratulations, Sury! A good lens...Don't worry too much about the will power, Sury. You know what they say about son-in-laws and daughters: "You're not losing your daughter, you're gaining a son." As long as that 'son' is good quality, you are unharmed by the change. And that 135mm 1.8 ZA looks like […]
    aster
  • Jokes and Photo Phunnies • Wheelie Bin August 3, 2015
    In Australia, the curbside garbage carts are called "wheelie bins."A garbage collector is driving along a Sydney street picking up the wheelie bins and emptying them into his rubbish truck.He goes to one house where the bin hasn't been left out.In the spirit of kindness and after having a quick look about for the bin, […]
    david antony
  • Give it Your Best Shot • Re: Will is not strong August 3, 2015
    Thank you David. Much appreciated. I am still trying to get a hang of the lens.That means more disk space is needed. SuryStatistics: Posted by sury — Mon Aug 03, 2015 3:43 am
    sury
  • Jokes and Photo Phunnies • August 3, 2015
    .Statistics: Posted by david antony — Mon Aug 03, 2015 1:55 am
    david antony
  • Jokes and Photo Phunnies • Re: (ツ) August 3, 2015
    PakoBack till the going gets tough.Statistics: Posted by david antony — Mon Aug 03, 2015 1:53 am
    david antony

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Pentax Q up to battle it out with NEX and Ricoh

Although it’s not Alpha, this product announcement – embargoed until 5am UK time, 23rd June, though no doubt by adhering to the embargo we will be a day later than hundreds of websites breaking it – speaks volumes for the impact of Sony’s Alpha system, its interformat lens compatibility, and the future of non-SLR systems.

Kenko, a Hoya group company like Pentax, showed a C-mount digital camera body in February, as a prototype planned for release this summer. Nothing more has been heard of this project. It looked rather like the Pentax in a way.

But Pentax Q is not a NEX competitor as it uses a tiny lens mount and a tiny sensor. It’s more like today’s equivalent of the Pentax 110 SLR system. Only Ricoh currently uses such small sensors in a nominally ‘interchangeable lens’ (not really) camera format. And our own testing of the Fujifilm F550 EXR, with a similar back-illuminated CMOS sensor, indicated that the gap between such microformats and the APS-C subformat is massive.

Just as your first dust spot will be… the anti-dust system is going to have to be 100% efficient, as a single dust bunny landing on a 1/2.3″ sensor will be disaster.

The lens throat is approximately 38mm diameter, very slightly smaller than Leica screw. The back focus is around 9mm, or half the thickness of the NEX body from sensor surface to flange. This will present the anti-shake, anti-dust vibration mounted sensor (on a magnetic carriage) in a fairly exposed ‘well’. The high speed limitation of 1/2,000th is unexpected, but the camera does not use a focal plane or electronic gating; instead it uses leaf-shutter lenses, which due to the small aperture size, can achieve this fast speed. But they can still only manage 1/250th flash sync, when it would be expected that a leaf shutter on this scale could achieve 1/1,000th.

Here is the Pentax Q system, due to go on sale in the Autumn (press release with comments).

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