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02-13-2016, 09:30 PM - 2 Likes   #46
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QuoteOriginally posted by RebelCharlie Quote
Why I stay with Pentax? I read somewhere that a sensor had to reach the 80Mp mark in order to approach the 200ISO grain size.
Eh? I recall reading somewhere that the finest grained color film in 135 format could achieve roughly 24 MP equivalence under ideal conditions, and it seems like 6 MP is perhaps more typical for common color negative daylight film.

Regardless of that, I'm all for digging out the vintage glass and shooting with it. We just need a proper focusing screen.

02-14-2016, 12:25 AM   #47
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QuoteOriginally posted by Belnan Quote
Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR

Could this be an updated version of the smc 28-105 f/3.2-5.6, although they would have to use some type of coating, likely HD.
I don't know such lens. There were 28-105/4-5.6 and 28-105/3.2-4.5.
02-14-2016, 03:38 AM   #48
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QuoteOriginally posted by Tony Belding Quote
Eh? I recall reading somewhere that the finest grained color film in 135 format could achieve roughly 24 MP equivalence under ideal conditions, and it seems like 6 MP is perhaps more typical for common color negative daylight film.

Regardless of that, I'm all for digging out the vintage glass and shooting with it. We just need a proper focusing screen.
According to Wikipedia:
A 36 mm x 24 mm frame of ISO 100-speed film was initially estimated to contain the equivalent of 20 million pixels,[6] although this estimate was later revised to between 4 and 16 million pixels depending on the type of film used.[7]

And the source :-)
02-14-2016, 03:55 AM - 1 Like   #49
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Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:



02-14-2016, 04:22 AM   #50
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I'm sure the Tamron lenses are on par optically, but does anyone have knowledge of the build quality? The below link provides an interesting comparison across a few companies.

https://www.lensrentals.com/blog/category/technical-discussion/teardown
02-14-2016, 04:23 AM   #51
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QuoteOriginally posted by Tony Belding Quote
We just need a proper focusing screen.
Perhaps that's already there too.
02-14-2016, 04:27 AM   #52
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Please STOP make us dreaming !!!
02-14-2016, 05:07 AM   #53
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QuoteOriginally posted by Mistral75 Quote
Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:
That looks very similar in design to other other recent mid-range Pentax Zooms. It actually looks a bit shorter than the DA16-85 and a bit longer than the DA 18-135 - (I counted the stipples on the waffle grip, 22:24). It's also interesting that it seems to have a green ring at the front, unless it's just a trick of the light in that photo.

02-14-2016, 05:17 AM   #54
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Hmm...I am actually hoping for a 12-30mm lens
02-14-2016, 05:47 AM   #55
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QuoteOriginally posted by JPT Quote
(...) It's also interesting that it seems to have a green ring at the front, unless it's just a trick of the light in that photo.
Most, if not all recent Pentax-branded lenses have a green ring, including HD DA 18-50mm f/4-5.6, HD D FA 150-450mm, HD D FA 24-70 and smc D FA645 35mm f/3.5 (a first for a 645 lens, if I'm not mistaken).
02-14-2016, 06:01 AM - 1 Like   #56
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QuoteOriginally posted by raider Quote
Hmm...I am actually hoping for a 12-30mm lens
15-30 is coming.

---------- Post added 14-02-16 at 14:01 ----------

QuoteOriginally posted by Azergoth Quote
According to Wikipedia:
A 36 mm x 24 mm frame of ISO 100-speed film was initially estimated to contain the equivalent of 20 million pixels,[6] although this estimate was later revised to between 4 and 16 million pixels depending on the type of film used.[7]

And the source :-)
This may help:
https://www.onlandscape.co.uk/2014/12/36-megapixels-vs-6x7-velvia/

Don't confuse film is a capture medium and print.
02-14-2016, 06:27 AM   #57
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That lens is quite the perfect predicted kit I hoped for.
02-14-2016, 07:16 AM   #58
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QuoteOriginally posted by Mistral75 Quote
Part of the picture of an HD Pentax-D FA 28-105mm f/3.5-5.6 ED DC WR (yay, there is at least an HD version of this lens!) was just posted on PentaxOne by PKb:
7-blades diaphragm, sharp at centre at all apertures and across the frame from f5.6-8 and price 600 USD - cool FF kit lens.
02-14-2016, 07:30 AM   #59
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QuoteOriginally posted by ogl Quote
7-blades diaphragm, sharp at centre at all apertures and across the frame from f5.6-8 and price 600 USD - cool FF kit lens.
From a Russian forum?
02-14-2016, 09:42 AM   #60
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Looks like Tamron should know a lot about Pentax gear these days - we had a couple posts starting with information from the Tamrom rep saying something.... well, he probably does know a lot.
Rebadging Tamron is better than no extreme zooms or buying 3rd party zooms that are not fully supported... Let's see what kind of fixed focal length lenses we can expect after a roadmap update. The Tamron 1.8/35 would be a nice addition as well as a rumored 1.4/85 stabilized by the camera. What I still wonder the most about is the 2.8/70-200... for a Tamron design it is too expensive and too heavy.
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