Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-08-2014, 08:32 AM   #526
Loyal Site Supporter
monochrome's Avatar

Join Date: Mar 2008
Location: Kirkwood (St. Louis) MO
Photos: Gallery | Albums
Posts: 20,434
This is just a guess - but I expect any new Pentax lens to be EXPENSIVE.
QuoteOriginally posted by VoiceOfReason Quote
If they could do a 250-600 f/4.5-6.3 WR and do it for 1000-1200 I'd have to save my pennies (or whip out the credit card) for one.


08-08-2014, 08:36 AM   #527
Emperor and Senpai
VoiceOfReason's Avatar

Join Date: Jun 2010
Location: Nashville, IN
Posts: 5,418
QuoteOriginally posted by monochrome Quote
This is just a guess - but I expect any new Pentax lens to be EXPENSIVE.
Unfortunately you are right. Imagine of they made the new Sigma 18-35 f/1.8. I'd expect it would be WR and over 2,000 dollars. I also expect if they somehow talked Tamron into rebranding the 150-600 they would sell it for at least 400 more.
08-08-2014, 08:42 AM   #528
JPT
Pentaxian




Join Date: Jan 2012
Location: Tokyo
Photos: Gallery
Posts: 1,252
QuoteOriginally posted by Wired Quote
Is it physically possible to make a DSLR with OVF that small while keeping the rear menu/review screen?
My MZ-3 is 53mm from the mount to the back of the casing (not the VF). My K-01 is 58mm to the back of the screen. So I conclude the LCD adds 5mm.

I think something like the ME would be attractive to a lot of customers and it's appeal could cross over to people considering cameras like the XT-1 and OMD. We all know Pentax had a good range of small lenses to go with it.

I can't see why this would be impossible. A lot of the space in film cameras was taken up by the film spools and in some cases CR2 batteries. Into this space they have to put the electronics and a battery. Some of the smaller mirrorless cameras show that this can be very small indeed.
08-08-2014, 09:02 AM   #529
Pentaxian




Join Date: Sep 2012
Photos: Gallery | Albums
Posts: 1,728
QuoteOriginally posted by rawr Quote
I mean specifications like this (in the 'EV Sensitivity' columns), which Fujifilm is doing it's best to hide:
Does anyone really go by these numbers anyway? I've never heard of a formal independent test protocol to measure low light AF functionality. Most important, I have a very hard time believing there are two MILCs that can focus at -4 EV when essentially everything else (even with virtually identical cameras -- Sony A7 series) have 0 EV focusing. Some or all of these numbers just don't make much sense, IMHO.

08-08-2014, 09:26 AM   #530
Veteran Member




Join Date: Feb 2011
Posts: 4,893
I was screwing around, focusing indoors with just the street+moonlight coming in through the window yesterday, via the A7R. Did much better than I expected. I'll have to check the settings on the camera but it was a pretty low EV scene.
08-08-2014, 11:29 AM   #531
Pentaxian




Join Date: Jun 2009
Location: GMT +10
Photos: Albums
Posts: 10,843
QuoteOriginally posted by IchabodCrane Quote
I've never heard of a formal independent test protocol to measure low light AF functionality
'Functionality' is a very general term. 'EV sensitivity' is more specific and measurable.

'Funtionality' brings in all the other settings and features of a camera. 'This camera AF is not functional unless it can do BIF in low-light', 'this camera is not functional unless I can track the eye of a model as she moves across a dark room'. Etc. 1,000,000 things to measure with 'functional'.

By now, after producing cameras with both AF and electronic metering for several decades, I would be surprised if there were no Japanese or other standards that set a framework for measuring both AF and metering EV sensitivity which all the camera makers used. Except Fuji
08-08-2014, 11:35 AM   #532
Pentaxian
JimmyDranox's Avatar

Join Date: Oct 2012
Location: Ploiesti, Romania
Photos: Gallery | Albums
Posts: 1,611
QuoteOriginally posted by monochrome Quote
This is just a guess - but I expect any new Pentax lens to be EXPENSIVE.
I also think that new lenses will come with high prices. And the reasons for this are not all depending of Pentax volition.
08-08-2014, 11:35 AM   #533
Pentaxian
Wired's Avatar

Join Date: Aug 2009
Location: Edmonton, AB
Photos: Gallery | Albums
Posts: 2,525
QuoteOriginally posted by JPT Quote
My MZ-3 is 53mm from the mount to the back of the casing (not the VF). My K-01 is 58mm to the back of the screen. So I conclude the LCD adds 5mm.

I think something like the ME would be attractive to a lot of customers and it's appeal could cross over to people considering cameras like the XT-1 and OMD. We all know Pentax had a good range of small lenses to go with it.

I can't see why this would be impossible. A lot of the space in film cameras was taken up by the film spools and in some cases CR2 batteries. Into this space they have to put the electronics and a battery. Some of the smaller mirrorless cameras show that this can be very small indeed.
True, but theres also the focusing motors, the shake reduction, PC boards, and everything else needed. I don't doubt that Pentax can make it incredibly small, but I don't think we can get much smaller than MZ3 size or so. Getting to MX/ME/LX sizing may be tricky.

08-08-2014, 11:58 AM   #534
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Oregon
Photos: Gallery | Albums
Posts: 10,770
QuoteOriginally posted by VoiceOfReason Quote
Of course I'd love to see a 250-600 rereleased, cheaper, but WR. If they could do a 250-600 f/4.5-6.3 WR and do it for 1000-1200 I'd have to save my pennies (or whip out the credit card) for one.
While I admire your optimism, and would be right behind you in line to buy one, I am afraid that is not going to happen.

The 250-600's go for 3,500+ used. So I cannot imagine Ricoh releasing one for anything less, probably a lot more. Look at the price of the DA 560mm. Big glass of any era has always been out of reach for most and I doubt that will change.

But a good 180-420 f/4 - 5.6 would be very interesting. (f/4 constant would be really interesting) Add the 1.4x TC and by some strange co-incidence you get 252-588, not sure if the AF would still work with that combo though.
08-08-2014, 01:09 PM   #535
Site Supporter
Aristophanes's Avatar

Join Date: Jul 2008
Location: Dartmouth, Nova Scotia
Photos: Albums
Posts: 3,922
QuoteOriginally posted by 6BQ5 Quote
I say Pentax should make it even smaller. How about like a ME Super? Pentax seems to have a history of "small". The should extend it!

P.S. I know a ME Super may be too small but they can try.

DSLR small = a little bit smaller than the K-x, keeping IBIS, adding illuminated focal points, but likely losing AA batteries.

Mirrorless = Q for the last gasp of small sensor cameras or the Ricoh GR/GXR expansion/replacement.

An APS-C bridge camera is due.
08-08-2014, 01:26 PM   #536
Pentaxian
cali92rs's Avatar

Join Date: May 2011
Location: Long Beach, CA
Posts: 3,346
QuoteOriginally posted by jatrax Quote
But a good 180-420 f/4 - 5.6 would be very interesting. (f/4 constant would be really interesting) Add the 1.4x TC and by some strange co-incidence you get 252-588, not sure if the AF would still work with that combo though.
Nikon makes a 200-400mm f4. (Canon may also make one, but i am not very familiar with their products)
Nikon AF-S NIKKOR 200-400mm f/4G ED VR II Lens 2187 B&H Photo

That is the price and size you can expect (plus or minus a few hundred bucks maybe) for a constant f4.
08-08-2014, 02:13 PM   #537
Pentaxian




Join Date: Sep 2012
Photos: Gallery | Albums
Posts: 1,728
QuoteOriginally posted by rawr Quote
'Functionality' is a very general term. 'EV sensitivity' is more specific and measurable.

'Funtionality' brings in all the other settings and features of a camera. 'This camera AF is not functional unless it can do BIF in low-light', 'this camera is not functional unless I can track the eye of a model as she moves across a dark room'. Etc. 1,000,000 things to measure with 'functional'.

By now, after producing cameras with both AF and electronic metering for several decades, I would be surprised if there were no Japanese or other standards that set a framework for measuring both AF and metering EV sensitivity which all the camera makers used. Except Fuji
That's all speculation. I've never seen any independent camera test for low light AF capability. Pentax Forums hasn't tested it. I've never seen it on DXO, etc. Have you seen one? My conclusion is each camera manufacturer has their own proprietary test and who knows what they really are and what really counts as passing?
08-08-2014, 02:28 PM   #538
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
QuoteOriginally posted by cali92rs Quote
Nikon makes a 200-400mm f4. (Canon may also make one, but i am not very familiar with their products)
Nikon AF-S NIKKOR 200-400mm f/4G ED VR II Lens 2187 B&H Photo

That is the price and size you can expect (plus or minus a few hundred bucks maybe) for a constant f4.
Canon has one with build in TC and is expensive.

I think it is safe to say that Pentax will never have a lens like that with constant f4 in program.

A lens like 135-420mm would be f4.5-f5.6 or so.
08-08-2014, 03:06 PM   #539
Pentaxian
JimmyDranox's Avatar

Join Date: Oct 2012
Location: Ploiesti, Romania
Photos: Gallery | Albums
Posts: 1,611
QuoteOriginally posted by RonHendriks1966 Quote
Canon has one with build in TC and is expensive.

I think it is safe to say that Pentax will never have a lens like that with constant f4 in program.

A lens like 135-420mm would be f4.5-f5.6 or so.
I wonder way ''it is safe to say''? We really don't know what Pentax-Ricoh will do. But I see that most Pentax users have a pessimistic view of the future development of Pentax line. Many think that a FF camera will never came, and also about ''pro'' grade telelenses. And if Pentax supporters think so, how can be the Pentax line perceived in the whole photographic world?

That must be a strong reason to think for Ricoh managers.
08-08-2014, 04:04 PM   #540
Pentaxian
RonHendriks1966's Avatar

Join Date: Jan 2009
Photos: Gallery
Posts: 8,714
QuoteOriginally posted by JimmyDranox Quote
I wonder way ''it is safe to say''? We really don't know what Pentax-Ricoh will do. But I see that most Pentax users have a pessimistic view of the future development of Pentax line. Many think that a FF camera will never came, and also about ''pro'' grade telelenses. And if Pentax supporters think so, how can be the Pentax line perceived in the whole photographic world?

That must be a strong reason to think for Ricoh managers.
That is a lens not sold so much, so a third lens in that range will be a problematic to sell item. Unless one of those others go broke I don't see it coming.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
645z, anniversary, body, canon, cif, dslr, ff, focus, hood, hoya, jp, lens, lenses, line, market, mf, nikon, pentax, pentax news, pentax rumors, photokina, post, pre-orders, release, ricoh, rumors, stock, train
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Photokina 2014 - FF Tesla Pentax Full Frame 797 11-14-2014 11:14 PM
Official PF Photokina Meetup Adam Travel, Events, and Groups 42 09-26-2012 11:33 AM
Photokina interview larkis Pentax Medium Format 5 09-22-2012 04:36 PM
Photokina price drop? Dynasty Pentax DSLR Discussion 10 08-21-2012 04:27 PM
Predict Pentax Photokina Announcements selar Photographic Industry and Professionals 72 08-20-2012 04:04 PM



All times are GMT -7. The time now is 05:24 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top