Nikon DX on FX: How exactly does this work? I understand that Nikon FX cameras have a setting (or maybe it's automatic) that adjusts the camera for using a DX lens. What is the final...

jerryc41 Loc: Catskill Mts of NY

How exactly does this work? I understand that Nikon FX cameras have a setting (or maybe it's automatic) that adjusts the camera for using a DX lens. What is the final result of using a DX rather than an FX lens of the same focal length?

MT Shooter Loc: Montana

They simply disable the sensor receptors on the outer portion of the FX sensor and utilize only the center portion of a size comparable to an APS-C crop sensor.

jerryc41 Loc: Catskill Mts of NY

MT Shooter wrote:

They simply disable the sensor receptors on the outer portion of the FX sensor and utilize only the center portion of a size comparable to an APS-C crop sensor.

OK. So it makes the sensor the size of a DX sensor.

MT Shooter Loc: Montana

jerryc41 wrote:

MT Shooter wrote:

They simply disable the sensor receptors on the outer portion of the FX sensor and utilize only the center portion of a size comparable to an APS-C crop sensor.

OK. So it makes the sensor the size of a DX sensor.

Not physically, but virtually, yes. The DX lens cannot physically put an image on the entire FX sensor due to the smaller diameter of the glass elements in the DX lens, so that is the way Nikon allows users to shoot a DX lens on the FX body. At least Nikon allows you this flexibility unlike Canon whose crop sensor lenses can actually cause physical damage to their Full Frame body if you mount one of them.

jerryc41 Loc: Catskill Mts of NY

MT Shooter wrote:

quote=jerryc41 quote=MT Shooter They simply disa... (show quote)

So can add a D300, D4, D600, and D800 to my collection and use the DX lenses I have. Great!

MT Shooter Loc: Montana

jerryc41 wrote:

quote=MT Shooter quote=jerryc41 quote=MT Shoote... (show quote)

Yes, but the D300 is a crop sensor body, same sensor as the D90.

Nikonian72 Loc: Chico CA

As MT Shooter mentioned, an FX body senses a DX lens, and uses only the center section of FX sensor that matches a DX sensor.

Sensors - Full Frame (FX) vs APS-C (DX) Field-of-View Comparison

jerryc41 Loc: Catskill Mts of NY

Nikonian72 wrote:

As MT Shooter mentioned, an FX body senses a DX lens, and uses only the center section of FX sensor that matches a DX sensor.

It looks like a round sensor or a rectabular lens would be more efficient. :D

Bram boy Loc: Vancouver Island B.C. Canada

Also the most important if you put " say a lens made for a full frame like the wide angle 24mm on a dx its not wide any more it becomes 36mm or normal lens.

jerryc41 Loc: Catskill Mts of NY

MT Shooter wrote:

quote=jerryc41 quote=MT Shooter quote=jerryc41 ... (show quote)

OK. I'll skip that one. :D

Bram boy Loc: Vancouver Island B.C. Canada

Well maybe not normal for a fx but normal for a dx

Bram boy Loc: Vancouver Island B.C. Canada

You can use eaither fx or dx lens made by same camera maker. But you are short changing your self. For example why pay $2000 for a nikon
14mm to 24mm wide angle zoom on the fx when the same lens would be only 21mm on the short end when placed on the dx thats a far cry from wide.on the dx

jerryc41 Loc: Catskill Mts of NY

Bram boy wrote:

You can use eaither fx or dx lens made by same camera maker. But you are short changing your self. For example why pay $2000 for a nikon
14mm to 24mm wide angle zoom on the fx when the same lens would be only 21mm on the short end when placed on the dx thats a far cry from wide.on the dx

A 10mm DX lens used on a DX body would have a 35mm equivalent focal length of 15mm, right? So, using the same lens on an FX body would give the same result, right?

jerryc41 Loc: Catskill Mts of NY

Bram boy wrote:

You can use eaither fx or dx lens made by same camera maker. But you are short changing your self. For example why pay $2000 for a nikon
14mm to 24mm wide angle zoom on the fx when the same lens would be only 21mm on the short end when placed on the dx thats a far cry from wide.on the dx

A 10mm DX lens used on a DX body would have a 35mm equivalent focal length of 15mm, right? So, using the same lens on an FX body would give the same result, right?

Bram boy Loc: Vancouver Island B.C. Canada

Also they dont disable any sensors. The sensors are still there its like tunnel vision or putting a straw down the barrel of a shot gun your only using part of the barrel. A.k.A. Lens.