SURVEY - Do FT / mFT users know the difference from "full frame"? Replies wanted!!

Started Apr 26, 2013 | Discussions thread
JosephScha Veteran Member • Posts: 5,038
Re: SURVEY - Do FT / mFT users know the difference from "full frame"? Replies wanted!!

ultimitsu wrote:

Buddy, you are the very type of people digimatt was referring to -  you have no clue.

That is not helpful, and borders on offensive.  I politely asked for an answer to fill me in on why thinking about light per sensor element is not good, and total light on the sensor is more useful.

What I don't get is why you and many others care about total light instead of light per unit area.

See? You have no clue.

Yes, I admitted that.  I also see that you are not giving me a clue.

FF cameras have larger sensor sights, I claim THAT is why they have better dynamic range: because they get more light per sensor element.

Which of the following camera has more DR?

36mp D800 or 16mp D4?

16mp D7000 or 12mp D300s?

24mp D600 or 12mp D3s?

16mp OMD or 12mp GF3?

I have not done the research to answer these questions.  Since you're asking, I'll guess that the 16MP D7000 (from 2010) has more dynamic range than the 12MP D300s (from 2009).  However, since the D300s has a crop factor of about 1.6 it actually does have smaller sensor sites than a full frame 16MP sensor, and it's from a year before the D7000, so that example does not prove your point.

But what REALLY bothers me about saying f/2.8 on mFT is "equivalent" to f/5.6 on FF is that is misleads too many people who somehow think this talks about exposure.

It is about exposure, and it is not misleading.

I think the more important point is that at the same ISO,

It appears that you do not understand what ISO is all about.

I used to when I bought film.  In fact, I used to when it was ASA here (before ISO).

and the same shutter speed, f/2.8 on mFT gives the same exposure as f/2.8 on any other sized sensor.

It appears you do not understand what exposure is all about either.

Wow, you made it to the end only telling me what I don't know and not contributing at all to what I do know.  Amazing.

Since you claim that I don't know what exposure is all about, are you really saying that a normal 50mm lens on full frame and an equivalent coverage 25mm lens on 4/3 sensor would require different f stops with the cameras set to the same ISO?  If so, please try to prove it. I will enjoy that.

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