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03-06-2016, 01:30 PM   #31
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QuoteOriginally posted by biz-engineer Quote
Lol , heck no, theory is that film resolution is 250Mpixels vs 36Mpixels of current DSLR.
Sorry...theory is that film has no pixels. I could not resist.


Steve

03-06-2016, 01:30 PM   #32
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QuoteOriginally posted by biz-engineer Quote
Lol , heck no, theory is that film resolution is 250Mpixels vs 36Mpixels of current DSLR.
Sorry...theory is that film has no pixels. I could not resist.


Steve
03-06-2016, 01:35 PM   #33
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QuoteOriginally posted by normhead Quote
Facts, you didn't point out.

In Jun Hirasawa's patent notes for the 77 ltd, he clearly states, "designed for the way people take pictures, not for the test charts". That is a fact. There are no such notes for the DA 70, that is also a fact.You've offered nothing. Your opinion. And your opinion is as biased as they come. Your opinion seems to be, no one but you knows anything and anything you don't know, no-one else knows either, now why don't you crawl back in your hole. You're adding nothing here. All you've done here is mislead people. It's sickening.

So now where is your "100% false" statement. You know this stuff. For some reason you choose to deliberately misrepresent the truth....

Or are my facts still 100% false? Be careful, many of us know where that quote is.
I did point out to the simple fact that Jun Hirakawa left Pentax (then, a Hoya division) years after the 70mm Limited was available into the market. I successfully proved that your statement - which I quoted - is incorrect. You made that up. You lied, which makes your personal attacks and claims that I am misleading even more ridiculous.

I never attempted to prove anything beyond that, and once again I'm not arguing against your preference for "non-clinical" lenses (which you could easily support without making up nonsense). Don't change the goalposts, and don't get too aggressive when caught in the act.
03-06-2016, 01:43 PM   #34
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I might have unintentionally posted multiple times a message, unfortunately I can't really see it nor access it to fix the problem. If that's the case, I apologize.

03-06-2016, 01:49 PM   #35
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QuoteOriginally posted by Michaelina2 Quote
Thanks, that was really good.
03-06-2016, 02:06 PM   #36
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QuoteOriginally posted by Rupert Quote
Question Norm? If I use the crop factor on the K1 with APS-C lenses will I get any benefit ......or loss .....over my current K5IIs? I think I know the answer, but hesitate to trust my meager knowledge.

Regards!
Putting aside the 'resolution' aspects of that, won't the K1 offer increased dynamic range, plus better high ISO performance, so making even a cropped image from it better in many respects?
03-06-2016, 02:09 PM - 1 Like   #37
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QuoteOriginally posted by normhead Quote
It's the old "sensors out resolve lenses" argument rehashed for the 18 bazillianth time.


People who always badger on about technical things like a lens showing this or that at a 200X crop get annoying after a while. I guess it's fun for them and they get their jollies off of talking about that but to me it sounds like they need to be working with Dr Sheldon Cooper in a technician's lab or somewhere where they can debate nuances to their heart's content.

As for me, I would like to learn more about lighting and composition. That has a whole lot more to do with photography than all the nerd talk ever has or will.
03-06-2016, 02:11 PM   #38
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QuoteOriginally posted by Tan68 Quote
Does your quote above support your earlier comment: The DA a Hoya "modern design" is the type of lens Hirakawa left the company rather than design.
That's an assumption, all we really know is that Mr. Jun left, the only note I've seen said "resigned", but, why would he leave his position as a designer at Pentax for the same position at Tamron. he clearly still felt he had something to offer, just not a Pentax. And I think Ricoh agrees. We are seeing Tamron lenses rebadged as Pentax lenses. Coincidence? I think not.

Having talked to an elderly Japanese Pentax rep at a trade show, "lenses for the way people take pictures not for the test charts" was clearly one of the ways Pentax was attempting to differentiate itself. Unfortunately, most of the world bought into the humans should see straight lines with no distortion" fallacy. Humans have never seen that way. And those pictures don't look natural. The natural look folks were drowned out by the storm of test chart guru's who could read a test chart, but had no clue what the attributes of what a natural looking picture was like.

Clearly Mr. Jun was losing that battle at Pentax even before Hoya. Hoya is just a convenient label of the trend, and the ones who had so little faith in him, they probably fired him.

Interesting that with Ricoh in control, Pentax has turned to Tamron, for the designs that Mr. Jun no doubt has a hand in. I think based on some public statements, that Ricoh really hoped they could lure Mr. Jun back. Their move to Tamron lens designs shows how much they understand the uniqueness of his approach, as opposed to Hoya's and the companies direction after the merger with Hoya.

I do a lot of reading between the lines... but, it's narrative that comes from paying attention to what people are saying and what's is happening. But, it's clear Ricoh doesn't have the same aversion to Mr. Jun's designs as Hoya did, or they wouldn't be using the company he works for to design so many of their lenses.

03-06-2016, 02:14 PM   #39
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It's not even clear whether he left the company voluntarily or chose to resign rathe than be fired.
03-06-2016, 03:07 PM   #40
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Analogous to my signature tag, the K-1 offers a K-mount and a 24x36-ish sensor. Everything else is either a discussion or up to me.
03-06-2016, 03:54 PM   #41
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QuoteOriginally posted by slip Quote
a lens that used to be sharp on my K5iis has a slight blur on the K3 due to being able to zoom into the details closer with the higher resolution. I would think that the K1 will be brutal for focusing errors.
k1 has 16x magnification, k1 has 10x.
k1 has a better af system than the k3.
k1 has a better ovf than the k3.

k1 will focus easier and more accurately than the k1.
03-06-2016, 04:13 PM   #42
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QuoteOriginally posted by Mattox Quote
I am really not sure how old lenses will go on the k1 to be honest. I think that these new dfa lenses are far far far more sharper than anything previously made by Pentax (tamron) as they are made for the needs of these high resolution sensors, not film. I am hoping that my old fa 35 f2 will do well on the k1 (as it does a great job on the k5) but at this resolution I am very pessimistic. For who is serious about modern day photography in the digital world and who obsesses over sharpness I think you'll find all your old k mounts will be sold off.

I own the FA 35 f2, and it is quite sharp on my k-3 which has much smaller pixels than the k-1. In that central apsc area the FA 35 is very sharp, is the question is how are the edges? Film shots seem to indicate things will be fairly sharp and not bad at all. Center resolution is already well known and exceeds the requirements.
03-06-2016, 04:20 PM   #43
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QuoteOriginally posted by stevebrot Quote
... from what I have seen, many of the reviewers on the Web are mostly good at talking without experience.
Personally, I'd replace "many" with "most". But otherwise, I agree...
03-06-2016, 04:21 PM   #44
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QuoteOriginally posted by biz-engineer Quote
No, APSC (typically K-3) require more AF accuracy than FF having less pixel density.

What's your logic?


Both methods of AF (CD and PD) benefit from more resolution.
03-06-2016, 04:30 PM   #45
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QuoteOriginally posted by slip Quote
a lens that used to be sharp on my K5iis has a slight blur on the K3 due to being able to zoom into the details closer with the higher resolution. I would think that the K1 will be brutal for focusing errors. thoughts?

Randy
I would think the K-1 would actually give the illusion of a sharper lens if it is FF compatible, providing you don't zoom in to much. A K-1 cropped to APS-C is about the same as the K-5. Someone should test this to find out if that is right.

Tell you something, I can get sharper images with my K-3 over my K-5 coupled with the Sigma 500mm f/4.5. I had to lens align my combo to +4 with auto focus fine tune on the K-3.
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