Telephoto Zoom Lens

Telephoto Zoom Lens
Why they say double the capture of a digital tele?

For example, say a 150 mm zoom on a Digital Slr is equal to 300 mm, non-Slr Digital zoom. How is that possible, I searched through both digital and is not the same, the images on TV not digital slr seems much closer. Are they trying to fool?

This formula only works with Olympus SLR. It's about the size of the sensor of a DSLR digital when compared with a full frame 35mm frame, 36 x 24 mm. Nikon APS-C sensor, a 1.5x factor like Pentax and Sony. Canon are 1.3 x 1.6 x again depending the size of the sensor.

Canon EF-S Telephoto Zoom Lens 55mm 250mm Image StabilzationF/4.0-5.6.

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Canon CN-E 30-300mm T2.95-3.7 L SP PL Mount Cinema Zoom Lens


Canon CN-E 30-300mm T2.95-3.7 L SP PL Mount Cinema Zoom Lens


$30,000.00


Canon CN-E 30-300mm T2.95-3.7 L SP PL Mount Cinema Zoom Lens


Canon CN-E 30-300mm T2.95-3.7 L SP PL Mount Cinema Zoom Lens


$25,000.00


 ARRI Alura 30-80mm T2.8 F Telephoto Zoom with LDS PL Mount


ARRI Alura 30-80mm T2.8 F Telephoto Zoom with LDS PL Mount


$22,000.00


New Fujinon HA18x7.6BERD-S58B ENG Lens with Digital Servo for Focus and Zoom


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$15,500.00


Canon EF 600mm f/4L IS III USM Lens. 3329C002. Canon Authorized dealer! In stock


Canon EF 600mm f/4L IS III USM Lens. 3329C002. Canon Authorized dealer! In stock


$12,999.00


Canon EF 600mm f/4L IS III USM Lens


Canon EF 600mm f/4L IS III USM Lens


$12,999.00


Canon EF 600mm f4/L IS III USM Super Telephoto Lens(3329C002)+128GB Memory Card


Canon EF 600mm f4/L IS III USM Super Telephoto Lens(3329C002)+128GB Memory Card


$12,999.00


Canon EF 600mm f/4L IS III USM Telephoto Lens - U.S.A. Warranty #3329C002


Canon EF 600mm f/4L IS III USM Telephoto Lens – U.S.A. Warranty #3329C002


$12,999.00


Canon EF 600mm f 4/L IS III USM Super Telephoto Lens - (3329C002)


Canon EF 600mm f 4/L IS III USM Super Telephoto Lens – (3329C002)


$12,999.00


Canon EF 600mm f/4L IS III USM Lens *NEW* *CANON USA WARRANTY*


Canon EF 600mm f/4L IS III USM Lens *NEW* *CANON USA WARRANTY*


$12,999.00


Canon CN-E 30-105mm T2.8 L S Telephoto Cinema Zoom Lens with EF Mount


Canon CN-E 30-105mm T2.8 L S Telephoto Cinema Zoom Lens with EF Mount


$12,500.00


Nikon AF-S NIKKOR 180-400mm f/4E TC1.4 FL ED VR Super-telephoto Zoom Lens  +++++


Nikon AF-S NIKKOR 180-400mm f/4E TC1.4 FL ED VR Super-telephoto Zoom Lens +++++


$12,396.95


Nikon AF-S NIKKOR 180-400mm f/4E TC1.4 FL ED VR Lens #20071


Nikon AF-S NIKKOR 180-400mm f/4E TC1.4 FL ED VR Lens #20071


$12,396.95


Canon EF 600mm f/4L IS III USM Lens


Canon EF 600mm f/4L IS III USM Lens


$12,382.72


Nikon AF-S NIKKOR 600mm f/4E FL ED VR Lens for Camera Bodies


Nikon AF-S NIKKOR 600mm f/4E FL ED VR Lens for Camera Bodies


$12,231.99


Canon EF 400mm f 2.8L IS III USM Lens - (3045C002)


Canon EF 400mm f 2.8L IS III USM Lens – (3045C002)


$11,999.00


Canon EF 400mm f/2.8L IS III USM IS Telephoto Lens, U.S.A. Warranty #3045C002


Canon EF 400mm f/2.8L IS III USM IS Telephoto Lens, U.S.A. Warranty #3045C002


$11,999.00


Nikon AF-S 180-400mm F/4E TC1.4 FL ED VR *OPEN BOX - DEMO* *NIKON USA WARRANTY*


Nikon AF-S 180-400mm F/4E TC1.4 FL ED VR *OPEN BOX – DEMO* *NIKON USA WARRANTY*


$11,500.00


Nikon AF-S NIKKOR 600mm f/4E FL ED VR Lens


Nikon AF-S NIKKOR 600mm f/4E FL ED VR Lens


$11,305.31


NIKON USA Nikkor AF-S 600mm f/4E FL ED VR Lens W/ Case  USA  MINT


NIKON USA Nikkor AF-S 600mm f/4E FL ED VR Lens W/ Case USA MINT


$10,195.00


Leica SUMMILUX M 50mm F1.4 Black Paint Initial Version [EXCELLENT]  (10612)


Leica SUMMILUX M 50mm F1.4 Black Paint Initial Version [EXCELLENT] (10612)


$9,698.00


Canon EF 200-400mm f4 L IS USM Extender 1.4x Lens 200-400/4                 #295


Canon EF 200-400mm f4 L IS USM Extender 1.4x Lens 200-400/4 #295


$8,609.00