Full frame cameras - what are positives

I am asking this out of ignorance because to me if cropped cameras had same technology as FFs, crops seem to be better deal.

I am reading a lot of positives about the 5D, but is all that due to it's advanced technology? Or does being full frame allow it to have the superior IQ (and stuff) in first place?

If you put the technology behind the 5D into a cropped camera (let's say an imaginery 90D), will this cropped camera take same photos as 5D?

Or the question can be, what if you move a crop sensor into the 5D? Will it take the same quality photos?

 

It's nothing more than dollars. The cost of manufacturing a sensor increases exponentially with sensor detection area. A DX sensor has 1/4 the area of an FX sensor and, quite simply, is much less expensive to manufacture. Another factor is sensor material. I cannot confirm this from personal experience but I've been told that, at hihg ISO values, CMOS sensors have less electrical noise than CCD sensors.

The sensor itself is but one factor (of a great many) that contribute to photo quality. However, the size of the detection area does not affect quality unless you're making some really major enlargements.

Personally, I wish that I could afford a body with an FX sensor. I don't have any noise problem but I've got too many years of 35mm usage and I'm very used to the many applicable guidelines. My D80 has a DX sensor and I frequently need to hesitate and rethink my situation.

 

I agree in principle but...
It's my belief that the DX-sized sensors are large enough that pixel size is not an issue (unlike the dinky pixels with PhD cameras). However, CCD vs. CMOS is an issue and I suspect that that's the more significant factor. Also, I'm ignoring the camera software.

In case you're wondering, "PhD" is "Push here, Dummy."

 

• Yes, CCDs are on the way out and I've been told that the reason is noise at high ISO values but I'm unable to personally confirm that as fact.
• I'm not certain but I suspect that Canon led Nikon because they have their own manufacturing facility.
• Certainly firmware has a lot to do with noise control but there are too many variables for me to address in any detail.

 

With a larger sensor, ceteris parabus, there will be less noise at high ISOs. Which is why the Nikon D3 has such incredible high ISO performance - Nikon FX sensor with only 12MP on it. Many believe that there is no point in cramming more than 6MP on a DX format sensor anyway.

If you're anything but a pro or very enthusiastic amateur, there's no real need to go full frame.

 

I bought a 5D for two main reasons.

1. I want all my lenses to behave just like my old 35mm camera, that is with no crop factor.

2. I wanted to be able to produce larger images.

 

It is true, CCD require more processing thatn a CMOS sensor, and in turn CCDs produce more hear which in turn creates more noise with longer exposures.

 

That certainly sounds logical.

 

People can you name a few full frame camera's..
5D is what i read here, thats canon.
What about Nikon and the others?

I was planning on getting a D300 in august, but if A full frame is better, i wouldn't mind getting a used one instead.

 

Nikon D3.
http://www.nikonusa.com/Find-Your-Nikon/Product/Digital-SLR/25434/D3.html

There ARE no others,
unless you have the cash for:
http://www.hasselbladusa.com/