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02-11-2012, 06:15 AM   #151
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QuoteOriginally posted by Adam Quote
Star means the DA zoom won't be variable aperture - so it's either going to be 2.8, 3.5, or 4, and I don't think it would make sense if it were slow. A 28-80mm F2.8 wouldn't be all that big- at least as long as it's only for APS-C.
In general I agree but:
- 28-80 APSC only? What is the point?!? 24-70/75/80 yes. It would give you APSC equivalent of 35-105/110/120 lens. Being f2.8 it would be great portrait lens. But starting at 28mm is just not wide enough for APSC only IMO
- if they are making 24/28-70/75/80 why limit it for APSC only? This would squash any FF rumours..
- if it is 15-85 it can't be f2.8. Even APSC image circle would mean that lens of that range at f2.8 would be the size of DA*50-135 at least IMO
- why not to make it f4? Yes it's slower but it would be nice upgrade from DA17-70 SDM

02-11-2012, 06:22 AM   #152
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QuoteOriginally posted by Caat Quote
I would imagine that it will be 2.8 to 4 or something. Continuous 2.8 would make for a huge lens - and an exceptionally expensive one as well.
You're right, f 2.8 with that wide of a zoom range is very unlikely, max 3x. But I just don't get the point of that lens, I mean we have a 17-70 f4 that's not bad and a 18-135 with variable aperture. To me it looks like either they're make a new version of one of these two, or it will be f 2.8 (DA*) but not much more that 3x zoom range ... maybe really like 20-60 ???
02-11-2012, 06:42 AM   #153
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QuoteOriginally posted by Noisychip Quote
You're right, f 2.8 with that wide of a zoom range is very unlikely, max 3x. But I just don't get the point of that lens, I mean we have a 17-70 f4 that's not bad and a 18-135 with variable aperture. To me it looks like either they're make a new version of one of these two, or it will be f 2.8 (DA*) but not much more that 3x zoom range ... maybe really like 20-60 ???
Perhaps because both Canon and Nikon have lenses with this focal range? So far as I can make out they're pretty popular and, if it's well designed and with WR, the Pentax lens will be a marked step up from the kit zoom or the 18-135mm. To better Canonikon, you'd need a constant f4 with great image quality, I think. If Ricoh are serious about winning a substantial slice of the higher-end DSLR market, then this is the kind of lens they're likely to be producing more of.
02-11-2012, 07:33 AM   #154
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QuoteOriginally posted by Noisychip Quote
You're right, f 2.8 with that wide of a zoom range is very unlikely, max 3x. But I just don't get the point of that lens, I mean we have a 17-70 f4 that's not bad and a 18-135 with variable aperture. To me it looks like either they're make a new version of one of these two, or it will be f 2.8 (DA*) but not much more that 3x zoom range ... maybe really like 20-60 ???
I was very happy with 17-70/4, switched it for 16-50/2,8 for the need of larger aperture but with the K-5 I would gladly be back to the former, if not for the wheater sealing. A 16-85/4 of DA* quality would be great for me. Even a simpler 17-70/4 DA*.

02-11-2012, 08:36 AM   #155
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I'm hoping it will compete with the Sigma 24-70 or Tamron 28-75 f2.8s. It would be great if it pushed the extremes of both, as in a 24-75 f2.8. If it is an f/4 or variable aperture I won't buy it. I have been thinking about buying the 16-50 or 50-135 this year, but with this news I'm going to wait and possibly pick up another limited lens.
02-11-2012, 12:05 PM   #156
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Since there also appears to be a new wide as well why wouldn't they be complimentary a 12-24 WR DC motor (f4 hopefully) and a 24-75/80 2.8 WR dc motor/SDMII. If they are FF even better since it signals a FF path, If they aren't well still excellent since both are excellent FL ranges on apsc
I agree there is not much chance of a 16/18-80 2.8 given how big it would need to be though at f3.5 or 4 it should be manageable add WR and dc motor and it could be a very intriguing lens certainly a good higher end k5 replacement kit lens
02-11-2012, 12:22 PM   #157
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QuoteOriginally posted by John Poitiers Quote
Really, really hideous ... the pink Q
Relax, it's not for you, it's for Paris Hilton wannabes - perfect with the pink bag with a tiny dog in!
02-11-2012, 04:07 PM   #158
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QuoteOriginally posted by Asahiflex Quote
It's always a Double Gauss design, so you won't get any info out of that
Well, I could hope that a diagram would reveal something new or unusual. Couldn't hurt.

02-11-2012, 04:13 PM   #159
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This is Pentax not Canon, so what is the second switch on the side of the 560? The first would be AF/M but we have no need for in-lens stabilization.

Jack
02-11-2012, 04:32 PM - 1 Like   #160
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QuoteOriginally posted by jbinpg Quote
This is Pentax not Canon, so what is the second switch on the side of the 560? The first would be AF/M but we have no need for in-lens stabilization.

Jack
Sets the telephoto on "stun"
02-11-2012, 06:33 PM   #161
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QuoteOriginally posted by jbinpg Quote
This is Pentax not Canon, so what is the second switch on the side of the 560? The first would be AF/M but we have no need for in-lens stabilization.
I asked the same thing in another thread. Focus limiter was the answer.
02-11-2012, 07:23 PM   #162
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QuoteOriginally posted by SteveM Quote
Sets the telephoto on "stun"
Good for making subjects "steady" lol

And the DA* lens there would probably be the counterpart to Sigma/Tamron 24-70 but at twice the price...
02-11-2012, 07:54 PM   #163
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QuoteOriginally posted by SteveM Quote
Sets the telephoto on "stun"
Why not 1:1 Macro?
Nice working distance!
02-12-2012, 03:27 AM   #164
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QuoteOriginally posted by VisualDarkness Quote
Why not 1:1 Macro?
Nice working distance!
True but with that tube colour the insect is likely to leave whatever it's on and land on the lens, before you get the shot.

I think the second switch is to adjust the GPS position from that of the camera to that of the objective.
02-12-2012, 05:34 AM   #165
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QuoteOriginally posted by Col Quote
True but with that tube colour the insect is likely to leave whatever it's on and land on the lens, before you get the shot.

I think the second switch is to adjust the GPS position from that of the camera to that of the objective.
Darn, I'll paint my lens blacker than hell...
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