The Canon EF 70-200mm f/4L USM lens is on sale for $599 at both Adorama (click here) and B&H (click here). Regular price is $709.

• Professional Quality Zoom Telephoto
• For Film or Digital SLR Cameras
• Fast Ring-Type USM Autofocus
• Full-Time Manual Focus Override
• Internal Zooming and Focusing
• 1 Fluorite Lens Element
• 2 UD (Ultra-low Dispersion) Elements
• Accepts 67mm Filters

New lenses in stock at B&H and Adorama.

Let’s start with the Tamron 70-200mm f/2.8 SP Di VC USD lens, sold for $1,499 (click here). Limited stock available. The core specs:

• 70-200mm Telephoto Zoom Lens
• Aperture Range: f/2.8-32
• Ultrasonic Silent Drive Motor
• Advanced Vibration Compensation
• Extra Low Dispersion Lens
• Moisture Resistant Construction
• Compact Design

The lens can also be pre-ordered at Adorama (click here).

Next, we have the Tamron 90mm f/2.8 SP Di MACRO 1:1 VC USD Lens, sold for $749 (B&H | Adorama). Limited stock.

The core specs:

• 90mm Macro Prime Lens
• Aperture Range: f/2.8-32
• 1:1 Maximum Reproduction Ratio
• Vibration Compensation
• Internal Focus System
• Ultrasonic Silent Motor Drive
• eBAND Hybrid Lens Coating
• Extra-low Dispersion Optical Elements
• Moisture-Resistant Construction

Finally, it is worth to note that the Bower 14mm f/2.8 Ultra Wide Angle has a $50 instant rebate, and is sold for $329 (click here). Core specs:

• For Canon EOS Digital SLR Cameras
• Manual Focus – Fixed f/2.8 Aperture
• Optimized for APS-C Size Sensors
• 89° Angle of View (APS-C)
• 114° Angle of View (Full Frame)
• 14 Elements/12 Groups Construction
• Two Aspherical & Two ED Lens Elements
• Close Focusing Down to 11″ (0.28 m)

Thatnikonguy (on Youtube) compared two Canon EF 70-200 image stabilized lenses, the EF 70-200 f/2.8 IS ($2099) and the EF 70-200 f/4L IS ($1349).

Canon 70-200mm IS lenses, f2.8 vs f4. The F4 is half the weight, price and half the light – but is it enough for you? Should you pay the extra for the big boy?

Canon EF 70-200 f/2.8L IS price check: Amazon, B&H, Adorama, Canon USA, J&R, Digitalrev, eBay, rent it at Borrow Lenses

Canon EF 70-200 f/4L IS price check: Amazon, B&H, Adorama, Canon USA, J&R, Digitalrev, eBay, rent it at Borrow Lenses

Two new lenses by Tamron, ready for Photokina 2012. The 70-200mm f/2.8 VC USD and 90mm f/2.8 Macro VC USD lenses. Price and specs not known for the time being.

Model: F004
Focal length: 90mm
Maximum aperture: F/2.8
Angle of view (diagonal): 27°02′ (with full-size SLR cameras)
17°37′ (with APS-C sized sensor digital SLR cameras)
Lens construction: 14 elements in 11 groups
Minimum focus distance: 0.3m (11.8 in)
Maximum magnification ratio: 1: 1
Working distance: 139mm (5.5 in)
Filter size: 58mm
Length*1: 114.5mm (4.5 in)*
Entire length*2: 122.9mm (4.8 in)*
Diameter: 76.4mm
Weight: 550g (19.4 oz)*
No. of diaphragm blades: 9 (rounded diaphragm)
Minimum aperture: F/32
Standard accessory: Lens hood
Compatible mounts: Canon, Nikon, Sony
Moisture & dust resistant: Yes

Model: A009
Focal length: 70-200mm
Maximum aperture: F/2.8
Angle of view (diagonal): 34°21′- 12°21′ (with full-size SLR cameras)
22°33′- 7°59′ (with APS-C sized sensor digital SLR cameras)
Lens construction: 23 elements in 17 groups
Minimum focus distance: 1.3m (51.2 in)
Maximum magnification ratio: 1: 8 (at f=200mm: MFD 1.3m)
Filter size: 77mm
Length*1: 188.3mm (7.4 in)*
Entire length*2: 196.7mm (7.7 in)*
Diameter: 85.8mm
Weight: 1470g (51.9 oz)*(including detachable tripod mount)
No. of diaphragm blades: 9 (rounded diaphragm)
Minimum aperture: F/32
Standard accessory: Flower-shaped lens hood
Compatible mounts: Canon, Nikon, Sony
Moisture & dust resistant: Yes

[via canon-board]

The new lens is in Stock at BHphoto Adorama and Amazon!