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Pentax Q-S1 announced
#19
Quote:Honestly I do not think that K-mount lenses are good enough for the Qs.


 
Just to put a perspective on things here:

Full format sensor = 36*24mm = 864 sqmm

Q: 7.44 x 5.58
mm = 41.5 sqmm



 

864/41.5 * 12 megapixel = 250 megapixel.

 

That's just to visualize the pixel density of the Q sensor. SLR lenses are just not designed for this kind of requirement.

Lenses are designed to deliver quality across the whole image frame. As a simplified rule - the bigger the area, the lower the peak performance. e.g. medium format lenses are technically slightly worse than 35mm lenses (usually).

 

Of course, a SLR lens will produce a relatively decent quality but pixel-level sharpness will be difficult.
 

I understand what you are saying and do recall that many MF lenses were manufactured to a lesser quality than 35mm lenses.  I would suppose that's why many of the uFT lenses are relatively pricey.  

But do you think that Pentax (sorry Ricoh...) are making the Q lenses to an even higher level than their APS-C lenses?   I'm not so sure about that...

 

Quote:This doesn't mean that there are no option - there's a world of them (C-mount) actually:
http://www.bhphotovideo.com/c/search?atc...4073573422

 

Fisheye, high speed primes ... you got it all ... except long tele lenses. The Q tele zoom has 45mm max. That's also about the limit that I can spot over at B&H (among the "megapixel"-grade C-mount lenses).

Of course, cheap C-mount lenses will produce correspondingly cheap results (unsurprisingly).

 

At some stage I looked into a fisheye option but then I thought it would be mental to invest that much money into an experiment.  Rolleyes
 

Heh heh, between the "controversy" of the performance of K mount lenses and the "diamonds-to-be-mined" in the C mount lenses available and your natural experimental curiosity I see a whole new set of Lens Tests to keep you busy for a long time!  

 

Buy the Q7 Klaus...buy it !!!    :lol:

  


Messages In This Thread
Pentax Q-S1 announced - by Klaus - 08-04-2014, 10:33 PM
Pentax Q-S1 announced - by Ayoh - 08-05-2014, 07:37 AM
Pentax Q-S1 announced - by Klaus - 08-05-2014, 09:23 AM
Pentax Q-S1 announced - by dave9t5 - 08-05-2014, 07:30 PM
Pentax Q-S1 announced - by Klaus - 08-05-2014, 11:02 PM
Pentax Q-S1 announced - by Ayoh - 08-05-2014, 11:55 PM
Pentax Q-S1 announced - by Ayoh - 08-06-2014, 12:00 AM
Pentax Q-S1 announced - by Guest - 08-06-2014, 12:21 PM
Pentax Q-S1 announced - by dave9t5 - 08-06-2014, 02:53 PM
Pentax Q-S1 announced - by Klaus - 08-07-2014, 12:11 AM
Pentax Q-S1 announced - by Guest - 08-07-2014, 04:33 AM
Pentax Q-S1 announced - by dave9t5 - 08-07-2014, 04:22 PM
Pentax Q-S1 announced - by Klaus - 08-07-2014, 10:16 PM
Pentax Q-S1 announced - by Klaus - 08-07-2014, 10:21 PM
Pentax Q-S1 announced - by Klaus - 08-07-2014, 10:38 PM
Pentax Q-S1 announced - by Ayoh - 08-08-2014, 01:48 AM
Pentax Q-S1 announced - by Brightcolours - 08-08-2014, 08:41 AM
Pentax Q-S1 announced - by dave9t5 - 08-08-2014, 10:35 PM
Pentax Q-S1 announced - by dave9t5 - 08-08-2014, 10:44 PM
Pentax Q-S1 announced - by dave9t5 - 08-08-2014, 10:53 PM
Pentax Q-S1 announced - by Brightcolours - 08-09-2014, 02:25 AM
Pentax Q-S1 announced - by Klaus - 08-09-2014, 08:53 AM
Pentax Q-S1 announced - by Klaus - 08-09-2014, 10:51 AM
Pentax Q-S1 announced - by dave9t5 - 08-09-2014, 03:05 PM
Pentax Q-S1 announced - by dave9t5 - 08-09-2014, 03:06 PM
Pentax Q-S1 announced - by dave9t5 - 08-09-2014, 06:02 PM
Pentax Q-S1 announced - by Brightcolours - 08-10-2014, 10:53 AM

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