Tokina Pentax Pro Zoom Lens 80-200mm F2.8 VS 100-300mm F4

**mikesbike** · 11-12-2022, 07:35 PM

Well, the f/2.8 will definitely have much less DOF especially with a telephoto shot, than will f/4, so with f/2.8 you might only get one very small point where focus is sharp vs f/4 which will provide a bit more area of sharpness. And, it is harder to get razor sharpness as good wide open with faster lenses, but at the same time, when shooting action, the f/2.8 can provide double the shutter speed to stop action and possibly get better results than f/4 can manage.

Driline · 11-12-2022, 08:42 PM

Originally posted by mikesbike

Well, the f/2.8 will definitely have much less DOF especially with a telephoto shot, than will f/4, so with f/2.8 you might only get one very small point where focus is sharp vs f/4 which will provide a bit more area of sharpness. And, it is harder to get razor sharpness as good wide open with faster lenses, but at the same time, when shooting action, the f/2.8 can provide double the shutter speed to stop action and possibly get better results than f/4 can manage.

Yea no doubt it’s still a very competent lens. And may have an advantage like you say in fast action photography.

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11-12-2022, 07:35 PM	#16
mikesbike Site Supporter Join Date: Dec 2016 Location: Southeastern Michigan Posts: 4,547	Well, the f/2.8 will definitely have much less DOF especially with a telephoto shot, than will f/4, so with f/2.8 you might only get one very small point where focus is sharp vs f/4 which will provide a bit more area of sharpness. And, it is harder to get razor sharpness as good wide open with faster lenses, but at the same time, when shooting action, the f/2.8 can provide double the shutter speed to stop action and possibly get better results than f/4 can manage.

11-12-2022, 08:42 PM	#17
Driline Pentaxian Join Date: Dec 2012 Location: IOWA Where the Tall Corn Grows Photos: Gallery Posts: 3,692 Original Poster	Originally posted by mikesbike Well, the f/2.8 will definitely have much less DOF especially with a telephoto shot, than will f/4, so with f/2.8 you might only get one very small point where focus is sharp vs f/4 which will provide a bit more area of sharpness. And, it is harder to get razor sharpness as good wide open with faster lenses, but at the same time, when shooting action, the f/2.8 can provide double the shutter speed to stop action and possibly get better results than f/4 can manage. Yea no doubt it’s still a very competent lens. And may have an advantage like you say in fast action photography.

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