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09-24-2015, 03:13 AM   #61
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HD Pentax-D FA 24-70mm f/2.8 ED SDM WR: 17 elements in 12 groups
Tamron Tamron SP 24-70mm f/2.8 Di USD: 17 elements in 12 groups

Pentax: 3 ED (Extra-low Dispersion) elements, 3 aspherical elements, 1 aspherical element made of single anomalous dispersion glass
Tamron: 3 LD (Low Dispersion) elements, 2 XR (Extra Refractive Index) elements, 3 glass molded aspherical elements, 1 hybrid aspherical element

Pentax: ultrasonic motor
Tamron: ultrasonic motor

Pentax: minimum focus = 0.38m
Tamron: minimum focus = 0.38m

Pentax: maximum magnification = 0.20x
Tamron: maximum magnification = 0.21x

Pentax: filter thread = 82mm
Tamron: filter thread = 82mm

Pentax: 9 aperture blades, rounded
Tamron: 9 aperture blades, rounded

Pentax: diameter = 88.5 mm
Tamron: diameter = 88.0 mm

Pentax: total length = 109.5mm
Tamron: total length = 117mm (Canon EF version)

Pentax: weight = 812 g with hood
Pentax: weight = 825 g with hood

09-24-2015, 03:17 AM   #62
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2700AUD(current exchange rate) for a non-star lens....I shudder to think what the body+lens combo price would be.
09-24-2015, 03:21 AM   #63
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QuoteOriginally posted by Daikokuya Quote
(...)
HD coating
(...)
QSF
(...)
QuoteOriginally posted by gazonk Quote
Two things the original version doesn't have?
QuoteOriginally posted by Daikokuya Quote
Correct, and no VC.
The Tamron also proposes full-time manual override in autofocus mode.
09-24-2015, 03:30 AM   #64
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Would be an interesting approach for Ricoh to release a cheaper 24-70 f/2.8 kit, then (presumably) bring a start lens with almost the same specifications, plus AW, maybe SDM, aero bright, improved optics etc.

With other manufacturers the 24-70 f/2.8 range is reserved for the pro-standard zoom, whereas cheaper FF kits are usually 24-120 f/4 or similar.

09-24-2015, 03:30 AM   #65
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Is this a situation where Pentax used an existing optical formula to create their own version with their own coatings, or is this just a straight rebadge? I would prefer the former, but I guess we'll see.
09-24-2015, 03:31 AM   #66
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Tamron SP 24-70mm f/2.8 DI VC USD Lens for Nikon AFA007N-700 B&H

Tamron is 1300 USD. Tamron changed to Pentax and became 1900 USD.

---------- Post added 09-24-2015 at 03:33 AM ----------

QuoteOriginally posted by Mistral75 Quote

Pentax: total length = 109.5mm
Tamron: total length = 117mm (Canon EF version)
Nikon version is 108.5 mm ))
09-24-2015, 03:35 AM   #67
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QuoteOriginally posted by elpolodiablo Quote
2700AUD(current exchange rate) for a non-star lens....I shudder to think what the body+lens combo price would be.
The revised price mentioned above looks better, but is still too rich:
160,000.00 JPY = 1,920.39 AUD

Local prices for the Tamron 24-70 are in the $1000 - $1200 AUD range.
09-24-2015, 03:55 AM   #68
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QuoteOriginally posted by rawr Quote
The revised price mentioned above looks better, but is still too rich:
160,000.00 JPY = 1,920.39 AUD

Local prices for the Tamron 24-70 are in the $1000 - $1200 AUD range.
To put it into perspective, local price for the new Nikkor 24-70mm f2.8E ED VR is $2,895.00, non VR version is in the $2500 range, Canon EF 24-70mm f/2.8L II USM is $ 2,372.00.

But yeah, compare to its Tamron origin, it's quite a bit of premium.


Last edited by elpolodiablo; 09-24-2015 at 04:09 AM.
09-24-2015, 04:01 AM   #69
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QuoteOriginally posted by elpolodiablo Quote
But yeah, compare to its Tamron origin, it's quite a bit of premium.
Hopefully this shows in the coatings etc.

QuoteOriginally posted by elpolodiablo Quote
To put it in perspective, local price for the new Nikkor 24-70mm f2.8E ED VR is $2,895.00, non VR version is in the $2500 range, Canon EF 24-70mm f/2.8L II USM is $ 2,372.00.
You want wide, fast zoom glass, you're going to pay for it through the nose, seems to be the message.
09-24-2015, 04:13 AM   #70
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So does this mean there is yet a 24-70 F2.0 DFA* AW to come?
09-24-2015, 04:18 AM   #71
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QuoteOriginally posted by D1N0 Quote
So does this mean there is yet a 24-70 F2.0 DFA* AW to come?
That'd mean Ricoh would outdo Sigma - at least aperture and range wise
09-24-2015, 04:19 AM   #72
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Well the plot thickens, they delayed the camera body (ff) but not the standard zoom that was to accompany it, so maybe they will leak a few accessories they are happy with, cords ? case ? maybe a high end flash ?, grip (the BG10 from China was available before the MZ-S from Japan), most Japanese who have commented on Digicame site say its a Tamron, but SDM dictates its a Tokina !.
09-24-2015, 04:36 AM   #73
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QuoteOriginally posted by FantasticMrFox Quote
That'd mean Ricoh would outdo Sigma - at least aperture and range wise
It's going to be hard to sell a * lens with the same range and aperture just because it has a little better weather sealing. F2 will be too big. I wasn't serious. At least the Tamron can compete with Nikon and Canon, though Canon has more sharpness.
Canon EF 24-70mm f/2.8L II USM on Canon EOS 5D Mark III versus Nikon AF-S Nikkor 24-70mm f/2.8G ED on Nikon D610 versus Tamron SP 24-70mm F2.8 Di VC USD Nikon on Nikon D610 - Side by side lens comparison - DxOMark
09-24-2015, 04:39 AM   #74
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Well DPreview said the Tamron "also behaves well with regards to the less-quantifiable aspects of image quality - it works well when shooting into the light, and generally gives attractively-blurred out-of-focus backgrounds."

Add the possibility that Jun Hirakawa may have designed it and Pentax coatings (and maybe special glass), and it is starting to look like a Pentax lens anyways (except the size ).
09-24-2015, 04:44 AM   #75
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But how committed is Ricoh to Full Frame? The 150-450 and 70-200 work just as well on aps-c where a 24-70 is awkward and they rebadge/clad a Tamron. They can pull out just as easily and still sell the long zooms.
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