And now Canon enters the fray

Started Jul 21, 2012 | Discussions thread
Senior MemberPosts: 2,038Gear list
Re: equivalency ;)
In reply to olyflyer, Jul 23, 2012

olyflyer wrote:

coudet wrote:

olyflyer wrote:

Anyway, bigger sensor = bigger lenses = more weight = higher price

No, it's the other way round for equivalent lenses.

Never the less, bigger sensor means bigger lenses.

He is talking about equivalent lenses.

A lens that is equivalent (similar DoF, exposure, viewing angle) to a FX 50 mm f/1.4 is going to be more expensive for a DX camera (it would have to be close to a 33 mm f/1.0). That lens would be shorter, but probably would have a bigger front lens element.

Smaller sensor cameras are only cheaper and smaller, if you look at the absolute f-stop number (if only viewing angle and exposure are equivalent).

A DX 35 mm f/1.8 is smaller than a FX 50 mm f/1.8 (not very much, but smaller). A CX 18 mm f/1.8 is going to be much smaller compared to the DX or FX lenses - and probably even smaller than a FX 50 mm f/5 lens.

I don't think that this really matters. Trying to get the same DoF form a small sensor camera is like trying to get a SUV to work like a F1 racing car, or trying to use a racing car to transport furniture.*

*) I just had to use a car analogy. It's always fun.

 myzel's gear list:myzel's gear list
Nikon 1 V1 Nikon 1 Nikkor 10mm f/2.8 Nikon 1 Nikkor 18.5mm f/1.8 Nikon 1 Nikkor 32mm f/1.2
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