Pentax Roadmap
Posted 08/10/2013 - 16:01
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andrewk wrote:
Andrew
Be careful what you predict - Vinyl record sales are up 745% vs.2008 fritzthedog wrote:
The Pros use FF - therefore if we had one - we would be pros
in a few years time, FF will dominate the market and APS-C sales will wither.The Pros use FF - therefore if we had one - we would be pros
Andrew
Will APS-C wither? bound to eventually.
Will FF dominate? - possibly, possibly not -
In the immortal words of Trevor Horn "Video killed the radio star". VHS killed off Betamax, DVD killed off VHS, Blue-ray will kill off DVD
As Benjamin Franklin put it" the only 2 things certain in life are death and taxes"
For now - I am very happy with my Pentax APS-C sensor. Will life continue should it become obsolete? - almost certainly
Carl
No matter how many lenses I have owned - I have always needed just one more
Posted 08/10/2013 - 16:10
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Pentaxophile wrote:
Comparing the 645D to FF is apples and oranges. Plus if the Pentax FF userbase is small, how small do you think the 645D user base is going to be?
Should the K3 capture a lot of interest (and hopefully some market share) maybe an FF will be on the cards. I believe Pentax will always struggle a bit, though, without an FF body to put at the top of the Xmas tree. People invest in APSC kit with an eye to one day going FF... which is one of the reasons they go with Canikon.
Comparing the 645D to FF is apples and oranges. Plus if the Pentax FF userbase is small, how small do you think the 645D user base is going to be?
Should the K3 capture a lot of interest (and hopefully some market share) maybe an FF will be on the cards. I believe Pentax will always struggle a bit, though, without an FF body to put at the top of the Xmas tree. People invest in APSC kit with an eye to one day going FF... which is one of the reasons they go with Canikon.
Sorry, that's just nonsense.
On what evidence are you basing this ridiculous comment on?
I know of only two people who have changed from APSC to Full frame...and one of them is now selling his Sony FF to buy the Pentax K3
Regards,
Michael
Michael
Posted 08/10/2013 - 16:12
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Pentaxophile wrote:
http://farm6.staticflickr.com/5533/9064453333_ce53e3fbbc_b.jpg
http://farm6.staticflickr.com/5519/9212742327_026e0efaa5_b.jpg
http://farm4.staticflickr.com/3811/9380267795_f9f8cdcecf_b.jpg
The size of the sensor makes no difference to the DOF whatsoever
RussV wrote:
I'm looking forward to seeing all the brilliant FF pictures that couldn't be taken on APS-C
Appreciably shallower DOF than possible on APSC. I'm looking forward to seeing all the brilliant FF pictures that couldn't be taken on APS-C
http://farm6.staticflickr.com/5533/9064453333_ce53e3fbbc_b.jpg
http://farm6.staticflickr.com/5519/9212742327_026e0efaa5_b.jpg
http://farm4.staticflickr.com/3811/9380267795_f9f8cdcecf_b.jpg
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 08/10/2013 - 16:25
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michaelblue wrote:
On what evidence are you basing this ridiculous comment on?
On reading numerous forum comments where people say they have bought a crop sensor camera but intend to get a FF when finances allow... and are already amassing FF compatible lenses. Heck some people on THIS forum are already marketing their F/FA lenses in the classifieds as 'FF ready'.On what evidence are you basing this ridiculous comment on?
Smeggypants wrote:
The size of the sensor makes no difference to the DOF whatsoever
Yes it does, in practical terms.The size of the sensor makes no difference to the DOF whatsoever
Quote:
As sensor size increases, the depth of field will decrease for a given aperture (when filling the frame with a subject of the same size and distance). This is because larger sensors require one to get closer to their subject, or to use a longer focal length in order to fill the frame with that subject. This means that one has to use progressively smaller aperture sizes in order to maintain the same depth of field on larger sensors.
As an example calculation, if one wanted to reproduce the same perspective and depth of field on a full frame sensor as that attained using a 10 mm lens at f/11 on a camera with a 1.6X crop factor, one would need to use a 16 mm lens and an aperture of roughly f/18. Alternatively, if one used a 50 mm f/1.4 lens on a full frame sensor, this would produce a depth of field so shallow it would require an aperture of 0.9 on a camera with a 1.6X crop factor — not possible with consumer lenses! - See more at: http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm#sthash.H6dInnij.dpuf
Enough technical stuff that makes my head hurt. You can just see abundant evidence of the shallower DOF a FF sensor can produce if you look through the full frame thoughts thread on the other forum.As sensor size increases, the depth of field will decrease for a given aperture (when filling the frame with a subject of the same size and distance). This is because larger sensors require one to get closer to their subject, or to use a longer focal length in order to fill the frame with that subject. This means that one has to use progressively smaller aperture sizes in order to maintain the same depth of field on larger sensors.
As an example calculation, if one wanted to reproduce the same perspective and depth of field on a full frame sensor as that attained using a 10 mm lens at f/11 on a camera with a 1.6X crop factor, one would need to use a 16 mm lens and an aperture of roughly f/18. Alternatively, if one used a 50 mm f/1.4 lens on a full frame sensor, this would produce a depth of field so shallow it would require an aperture of 0.9 on a camera with a 1.6X crop factor — not possible with consumer lenses! - See more at: http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm#sthash.H6dInnij.dpuf
http://www.pentaxforums.com/forums/non-pentax-cameras-canon-nikon-etc/110876-som...
Posted 08/10/2013 - 16:34
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IOW the sensor size does not change DOF.
Changing subject distance changes DOF.
Changing subject distance changes DOF.
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 08/10/2013 - 16:54
Link
What is IOW? Apart from Isle of Wight
Barrie - Too Old To Die Young
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Posted 08/10/2013 - 16:56
Link
Its clear enough - Depth of Field is shallower on the Isle of Wight unless you go FF!
My Guides to the Pentax Digital Camera Flash Lighting System : Download here from the PentaxForums Homepage Article .... link
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Posted 08/10/2013 - 16:58
Link
bforbes wrote:
What is IOW? Apart from Isle of Wight
In Other Words.
What is IOW? Apart from Isle of Wight
[i]Bodies: 1x K-5IIs, 2x K-5, Sony TX-5, Nokia 808
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Lenses: Pentax DA 10-17mm ED(IF) Fish Eye, Pentax DA 14mm f/2.8, Sigma 17-70mm f/2.8, Pentax-A 28mm f/2.8, Sigma 30mm F1.4 EX DC, Pentax-A 50mm f/1.2, Pentax-A 50mm f/1.4, Pentax-FA 50mm f/1.4, Pentax-A 50mm f/1.7, Pentax DA* 50-135mm f/2.8, Sigma 135-400mm APO DG, and more ..
Flash: AF-540FGZ, Vivitar 283
Posted 08/10/2013 - 17:06
Link
RussV wrote:
I'm looking forward to seeing all the brilliant FF pictures that couldn't be taken on APS-C
*****
The terminology doesn't help.
Full frame suggests anything less needs topping up. A crop sensor can produce impressive images, with good detail and colour depth. It's possible to print the result up to A3 size (and often to A2). For some subjects, FF is undoubtedly a good investment for amateurs (as well as professionals), but it isn't any sort of panacea.
When I look at the galleries of some of those who are clamouring for FF (and a few who have been persuaded to make the transition rather than wait on Pentax), I can sometimes see the sense of the move. Anyone who earns money from the sale of prints of landscapes, eg, might well be well-advised to consider the move. But at other times I'm left wondering what benefit FF will bring to photographers who hitherto have not yet seemed to make the most of their APSC kit.
I'm looking forward to seeing all the brilliant FF pictures that couldn't be taken on APS-C
*****
The terminology doesn't help.
Full frame suggests anything less needs topping up. A crop sensor can produce impressive images, with good detail and colour depth. It's possible to print the result up to A3 size (and often to A2). For some subjects, FF is undoubtedly a good investment for amateurs (as well as professionals), but it isn't any sort of panacea.
When I look at the galleries of some of those who are clamouring for FF (and a few who have been persuaded to make the transition rather than wait on Pentax), I can sometimes see the sense of the move. Anyone who earns money from the sale of prints of landscapes, eg, might well be well-advised to consider the move. But at other times I'm left wondering what benefit FF will bring to photographers who hitherto have not yet seemed to make the most of their APSC kit.
Posted 08/10/2013 - 17:15
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I have to say that I'm astonished by the quality of this image, from the K3 sample image gallery:
http://www.ricoh-imaging.co.jp/english/products/k-3/ex/img/ex-pic01.jpg
Had I not known where it came from, I would have assumed that a FF sensor camera had been used, or even medium format.
http://www.ricoh-imaging.co.jp/english/products/k-3/ex/img/ex-pic01.jpg
Had I not known where it came from, I would have assumed that a FF sensor camera had been used, or even medium format.
Posted 08/10/2013 - 17:22
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fritzthedog wrote:
Be careful what you predict - Vinyl record sales are up 745% vs.2008
Yep, I heard that vinyl sales are rising - but not by that much. CD sales are falling, but are still nearly 200 times those of vinyl LPs. Be careful what you predict - Vinyl record sales are up 745% vs.2008
It's inevitable that new technology replaces older technology - whether it is materially "better" or not.
Andrew
Posted 08/10/2013 - 17:26
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Smeggypants wrote:
IOW the sensor size does not change DOF.
no it doesn't, but changing focal length does and a larger sensor size dictates a longer focal length for the same subject distance and framing. IOW the sensor size does not change DOF.
You know this perfectly well.
you don't have to be mad to post here
but it does help
but it does help
Posted 08/10/2013 - 17:27
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Its not just about the cameras either - you need to re-consider your whole lens line-up. For us Pentax people its no small thing to have to offload a collection of DA lenses, for .... what exactly? Its a bit of a mish mash of options and independants isn't it? There's not really a clear 'road-map' of FF glass to follow.
Many of the old 70's & 80's lenses a lot of us love to use may not stand up to the intense scrutiny under the glare of higher resolution shone onto them by a much bigger sensor.
Many of the old 70's & 80's lenses a lot of us love to use may not stand up to the intense scrutiny under the glare of higher resolution shone onto them by a much bigger sensor.
My Guides to the Pentax Digital Camera Flash Lighting System : Download here from the PentaxForums Homepage Article .... link
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
Pentax K7 with BG-4 Grip / Samyang 14mm f2.8 ED AS IF UMC / DA18-55mm f3.5-5.6 AL WR / SMC A28mm f2.8 / D FA 28-105mm / SMC F35-70 f3.5-4.5 / SMC A50mm f1.7 / Tamron AF70-300mm f4-5.6 Di LD macro / SMC M75-150mm f4.0 / Tamron Adaptall (CT-135) 135mm f2.8 / Asahi Takumar-A 2X tele-converter / Pentax AF-540FGZ (I & II) Flashes / Cactus RF60/X Flashes & V6/V6II Transceiver
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6794 posts
17 years
Nottingham
I'm looking forward to seeing all the brilliant FF pictures that couldn't be taken on APS-C
http://farm6.staticflickr.com/5533/9064453333_ce53e3fbbc_b.jpg
http://farm6.staticflickr.com/5519/9212742327_026e0efaa5_b.jpg
http://farm4.staticflickr.com/3811/9380267795_f9f8cdcecf_b.jpg