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By admin, on November 7th, 2013
Tamron finally announces the long rumored SP 150-600mm F/5-6.3 VC USD Lens today, the lens features redesigned optics and advance image stabilization. Take a look at the more details below at press release
Continue reading Tamron Announces SP 150-600mm F/5-6.3 VC USD Lens
By admin, on November 6th, 2013
Just few days ago we have published a news/rumor that Tamron may announce a Tele-photo lens on Nov 7, 2013. Now we have confirmed news (+ image above) that Tamron will announce 50-500mm f/5-6.3 VC lens on Thursday aka Nov 7, 2013. The Upcoming 50-500mm f/5-6.3 VC is rumored to feature redesigned optics and VC (Tamron optical IS).
src-canonrumor
By admin, on October 31st, 2013
Third party lens developers putting new benchmark in the game, they are not only making affordable lenses but the quality is also excellent, TAMRON is rumored to announce a new high-grade tele lens on Nov 7th 2013, we don’t have any details yet but will update you as soon as we get more info.
src-pr.com
By admin, on December 16th, 2012
New Tamron patent surfaced over the web, the Tamron 300mm F2.8 Lens designed for full frame Mirrorless camera, we know that currently no Full Frame mirrorless available/announced in the market, according to sources Tamron is close to Sony and Canon and we may see a Full-Frame mirrorless NEX OR FF EOS- M very Soon.
Self-interpretation and summary, Patent Documents
- Patent Publication No. 2012-242504
- Release Date 2012.12.10
- Filing date 2011.5.17
- Related 2012-242505
- Example 1
- Focal length f = 294.00mm
- Fno. = 2.88
- 2ω = 9.3 ° angle of view
- 19 sheets 16 groups lens configuration
- Three 3 aspherical surface
- (Abbe number 81.6) three low-dispersion glass
- (Abbe number 70.4) one low-dispersion glassTamron LD glass is standard, I did not know that more than 80 or more than 70 such
- Positive and negative polarity
- Inner Focus (the third group for focusing)
- (Adjusted for the fourth group in the group of anti-vibration) shake
- Costs in the form of inexpensive glass in one of the first lens group
- One costs the consists of the second lens group
source
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