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03-11-2019, 05:49 PM   #196
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QuoteOriginally posted by Wheatfield Quote
No, it's a 60-250 in 35mm terms.

---------- Post added 03-11-19 at 05:45 PM ----------



Oh dear. Someone should tell them.
It's only about 3 years since the K1 was released... ...the DFA* 70-200 predated the K1 by quite a while, so the Ricoh website is probably correct with the 'equivalent' APSc viewing angle at the lens release. Why would they want to update their 'facts' at the release of the Full-frame flagship, or in the intervening 3 years.... ;-)

03-12-2019, 03:04 AM   #197
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QuoteOriginally posted by nocturnal Quote
That is the definition of a rebadge to me. A bit like Vauxhall cars in the UK are Opel in Europe... Same car with a few changes, steering wheel on other side, kilometers on the speedo and a few reg changes.

Pentax lenses are designed and built by Pentax.
I don't think it really matters except when the question comes up of whether you would get the same results with a Tamron 15-30 on a D810 compared to a Pentax 15-30 on a K-1. Pentax coatings are significantly better than Tamron's and that certainly could help both with improved light transmission and less flare.

I agree that it is a rebadge, but that doesn't make it exactly the same either.
03-12-2019, 10:02 AM   #198
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QuoteOriginally posted by phoebus Quote
It's only about 3 years since the K1 was released... ...the DFA* 70-200 predated the K1 by quite a while, so the Ricoh website is probably correct with the 'equivalent' APSc viewing angle at the lens release. Why would they want to update their 'facts' at the release of the Full-frame flagship, or in the intervening 3 years.... ;-)
Even drunk, their description is wrong.
"to cover a telephoto range from 107mm to 307mm in the 35mm format"
Duh.
03-12-2019, 11:05 AM - 1 Like   #199
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I open the topic with the curiosity about the news about of the DFA 70-200 / 4 and that's just no news - just pretentious lecturing.

Alan Ford once said to me:

"We do not promise anything and we do it"
or
"We have experience, and you money,
in the end, you will have the experience and money for us. "

or the more important thought of Alan Ford, which impressed me very much:
"better to issue a new lens, than a friend"


Last edited by mbukal; 03-12-2019 at 11:23 AM.
03-12-2019, 11:06 AM   #200
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QuoteOriginally posted by Mistral75 Quote
Note to self: stay away from nocturnal, his hands move by themselves without being connected to and commanded by his brain.
simply boriscleto® him
03-12-2019, 11:24 AM - 1 Like   #201
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QuoteOriginally posted by Wheatfield Quote
Even drunk, their description is wrong.
"to cover a telephoto range from 107mm to 307mm in the 35mm format"
Duh.
phoebus has a point, this description was written when no 35mm (aka FF) DSLR was available in Ricoh land and one might understand what they wanted to say (that the area used by the APS-C sensor might capture an image with the approximately same field as a 107-307 mm lens on a sensor with the dimensions of former 35mm film would do)

You may say that it covers on APS-C the range that a lens with the said focal range on 35mm would cover, not elegantly put, but it might be considered a mainstream phrasing - at that time!

Of course this should be put straight, looks really awful.
03-12-2019, 12:14 PM - 1 Like   #202
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QuoteOriginally posted by MMVIII Quote
phoebus has a point, this description was written when no 35mm (aka FF) DSLR was available in Ricoh land and one might understand what they wanted to say (that the area used by the APS-C sensor might capture an image with the approximately same field as a 107-307 mm lens on a sensor with the dimensions of former 35mm film would do)

You may say that it covers on APS-C the range that a lens with the said focal range on 35mm would cover, not elegantly put, but it might be considered a mainstream phrasing - at that time!

Of course this should be put straight, looks really awful.
I think even when it was written it was wrong. I don't think any amount of convolution can make this sentence correct. I understand that they are playing reverse equivalence, but still. This is a poster child for why playing the equivalence game is a fool's errand.
As an aside, and talking about fool's errands, one day when I was about 11, my older brother and cousin had the rear end out of my cousin's Beetle. I was probably being a pest, as even then I liked playing with wrenches, but they sent me off to the local garage by bicycle to pick up a replacement radiator cap.

03-27-2019, 06:08 AM   #203
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I saw in the ‘spills the beans’ thread that Kimio Tanaka had some interesting things to say about the coming 70-200 f4... of course they are now buried behind a ‘what is the best 50mm’ discussion.

One of those was that, despite the ‘not coming in spring’ delay, he thought it might show up ‘soon’ as a surprise.

The other was that the lens was designed to be light and compact, which none of the current crop of 70-2x0 f4 lenses from Canon, Nikon, Tokina, or Tamron seem to be.

Has anyone heard anything else like that from other sources? Or is this just going to turn in to a thread bump?

-Eric
03-27-2019, 06:29 AM   #204
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QuoteOriginally posted by TwoUptons Quote
I saw in the ‘spills the beans’ thread that Kimio Tanaka had some interesting things to say about the coming 70-200 f4... of course they are now buried behind a ‘what is the best 50mm’ discussion.



One of those was that, despite the ‘not coming in spring’ delay, he thought it might show up ‘soon’ as a surprise.



The other was that the lens was designed to be light and compact, which none of the current crop of 70-2x0 f4 lenses from Canon, Nikon, Tokina, or Tamron seem to be.



Has anyone heard anything else like that from other sources? Or is this just going to turn in to a thread bump?



-Eric
Awesome! Looks like it's designed per my spec - light and awesome

03-27-2019, 06:30 AM - 1 Like   #205
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I'm still wondering why they didn't just update the 60-250 ƒ4 with a stronger AF motor and replaced baffle.

This lens seems like step a backwards not forwards. The 60-250's optics are pretty amazing. The only way this lens works for me is if the optics and speed of AF are considerably better than the 60-250.

Last edited by normhead; 03-28-2019 at 07:24 AM.
03-27-2019, 06:33 AM   #206
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QuoteOriginally posted by normhead Quote
I'm still wondering why they didn't just update the 60-250 ƒ4 with a stronger AF motor and replaced baffle.

This lens seems like step backwards not forwards. The 60-250's optics are pretty amazing. The only way this lens works for me is if the optics and speed of AF are considerably better than the 60-250.
I'd get it if it's lighter than 60-250 4. If it's not, I'll get the 60-250.

Other than reach, what else seems like a step back? I'm assuming it will have a better af, hopefully similar or better optical performance, probably similar or better weather sealing, and hopefully it'll shave around 300-350g of weight.

03-27-2019, 07:43 AM   #207
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QuoteOriginally posted by normhead Quote
I'm still wondering why they didn't just update the 60-250 ƒ4 with a stronger AF motor and replaced baffle.

This lens seems like step backwards not forwards. The 60-250's optics are pretty amazing. The only way this lens works for me is if the optics and speed of AF are considerably better than the 60-250.
How bad is the AF speed on the DA*? I’m going to be replacing a screwdrive F70-210, which isn’t horrible, speed-wise...

-Eric
03-27-2019, 08:06 AM   #208
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QuoteOriginally posted by normhead Quote
I'm still wondering why they didn't just update the 60-250 ƒ4 with a stronger AF motor and replaced baffle.

This lens seems like step backwards not forwards. The 60-250's optics are pretty amazing. The only way this lens works for me is if the optics and speed of AF are considerably better than the 60-250.
I hear you, but I wonder if the new lens might be a compact PLM lens, and that lends itself better to the focal range in trying to keep it compact? The 60-250 is awesome, but not compact...
Dunno, but it'll be fun finding out.
Eric
03-27-2019, 08:31 AM   #209
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QuoteOriginally posted by Erictator Quote
I hear you, but I wonder if the new lens might be a compact PLM lens, and that lends itself better to the focal range in trying to keep it compact? The 60-250 is awesome, but not compact...
Dunno, but it'll be fun finding out.
Eric
I think I read that Sony has two separate motors in some of their lenses to move two groups simultaneously during focusing to increase speed and precision. That would be cool...

-Eric
03-27-2019, 08:32 AM   #210
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I'll take reduced weight over focus speed but that's from my very biased landscape photography perspective lol

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