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Old Jan 5, 2007, 11:36 AM   #1
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Anybody know what the street price of this new lens will be?



Thanks,

Bud
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Old Jan 5, 2007, 12:44 PM   #2
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Tamron annouced today that they have developed an 18-250mm zoom for APS-C digital cameras. This is the largest zoom ratio (13.9x) of any current zoom lens, and when mounted on an EOS 30D or similar DSLR gives a zoom range with a field of view equivalent to 28.8 to 400mm on a full frame 35mm camera. Pretty impressive range! The lens weights less than 1lb (actually 15.2oz) and is only 3.3" long at the 18mm setting. The weight, size and zoom range would make this an ideal travel lens, at least on paper.

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It's usually the case that lenses with extreme zoom ranges have to compropmise somewhat on optical quality, but just to what degree will have to wait for a complete test. There's no word on price or availability yet, but it would be resonable to assume it will sell for more than the current 18-200 Di-II (about $365), maybe around $400?

I'll be trying to get a sample for review as soon as it becomes available in the US, so stay tuned.

Technical Specifications




Model Name
A18

Focal Length
18-250mm

Maximum Aperture
F/3.5-6.3

Angle of View
75? 33' - 6? 23' (APS-C size equivalent)

Lens Construction
16 elements / 13 groups

Minimum Focus Distance
0.45m (17.7") (entire zoom range)

Maximum Mag. Ratio
1:3.5 (at f=250mm, MFD 0.45m)

Filter Diameter
62mm

Overall Length
84.3mm (3.3") *

Maximum Diameter
74.4mm (2.9") *

Weight
430g (15.2oz.) *

Diaphragm Blades
7 blades

Minimum Aperture
F/22

Standard Accessory
Flower-shaped Lens Hood

Compatible Mount
Canon AF, Nikon AF-D, Pentax AF, and Sony (Konica Minolta)
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Old Jan 5, 2007, 1:00 PM   #3
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wrams wrote:
Quote:
It's usually the case that lenses with extreme zoom ranges have to compropmise somewhat on optical quality, but just to what degree will have to wait for a complete test. There's no word on price or availability yet, but it would be resonable to assume it will sell for more than the current 18-200 Di-II (about $365), maybe around $400?
That's a key statement. The highly regarded Nikon 18-200 is $1000 and it has a number of issues I believe. Considering qualiity 70-200 zooms cost $550 (for f4), there are a LOT of trade-offs involved with a lens that tackles the complexity of incorporting a wide-angle lens and telephoto lens all in one. To get true quality, the lens would have to be much bigger, much heavier and thus much more expensive.

So, you do sacrifice quite a bit for convenience. Not to say don't consider them - convenience is HUGE. As mentioned this could be a great travel lens. But considering midsize zooms of quality cost more than $500 you can't expect an ultrazoom to deliver quality at a lower price.
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Old Jan 5, 2007, 1:56 PM   #4
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wrams wrote:
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Tamron annouced today that they have developed an 18-250mm zoom for APS-C digital cameras.
Kind of old news isn't it - Today was 3 months ago!!!
http://www.steves-digicams.com/digin...#tamron_18-250
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Old Jan 5, 2007, 1:56 PM   #5
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9/06 was the announcement - i.e. Photokina: http://www.tamron.com/news/35mm/18250di2.asp
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Old Jan 5, 2007, 4:08 PM   #6
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Tamron USA has it listed as available Feb 2007 on their webpage.

http://www.tamron.com/lenses/default-photo.asp

I'm guessing the price will be probably be a bit higher than their current 18-200mm lens.
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