ralphfr Loc: Long Island, NY

In my viewing of exif data for my Fuji HS25 I noticed that the focal length in the file has to be multiplied by the crop factor to get 35mm equivalent FL. Is this true for all cameras with crop factors? Sometimes when looking at posted photos I like to check the focal lengths and need to know if I'm comparing apples to apples or sometimes apples to bananas.

skh1454

I believe so, it's true for all my Nikon DX bodies as well as the Nikon P900 and my older Olympus bridge camera. Since the focal length is a technical specification, I'd be surprised to see anything other than the actual focal length reported in the EXIF. It would be a nice feature to have the "FF effective" focal length listed somewhere in the EXIF for high crop factor cameras, but I'm not aware of any that have that. Perhaps somebody else knows of one?

Dngallagher Loc: Wilmington De.

Yes.... the 35mm equivalent is often included in the EXIF data properly multiplied..at least for my Nikon D7100 & Canon 80D.

Originally my Nikon reported both the same as Nikon forgot to include the crop factor multiplier in the original firmware - corrected in first firmware update.

Nikon D7100


Canon 80D

frankraney Loc: Clovis, Ca.

Your camera records what it is set at. LR reads that data and also has the 35mm equivilent, under metadate select EXIF and IPTC....IMHO too much is put on crop factor....If you want the equivelant of a 35mm then set your camera using the crop factor, using shorter FL to get the same FOV....The biggest difference is the Field of View.... Your Crop factor is 5.41....Not sure what your are asking..

Spider223

frankraney Loc: Clovis, Ca.

Your camera records what it is set at. LR reads that data and also has the 35mm equivilent, under metadate select EXIF and IPTC....IMHO too much is put on crop factor....If you want the equivelant of a 35mm then set your camera using the crop factor, using shorter FL to get the same FOV....The biggest difference is the Field of View.... Your Crop factor is 5.41....Not sure what your are asking..

Dngallagher Loc: Wilmington De.

A crop factor camera has a FOV that is cropped compared to a FF camera - a Nikon DX is a 1.5 crop factor and a Canon 80D is a 1.6 crop factor.

Many cameras will record the lens length setting AND the resulting FF equivalent in exif - as shown above multiplied by the crop factor of the particular camera.

rehess Loc: South Bend, Indiana, USA

That depends on what manufacturer puts into the EXIF. Looking through images I have downloaded from UHH, I see that Nikon gives both values, but Canon gives only the true value.

Dngallagher Loc: Wilmington De.

See images above - My Canon 80D provides both. I did however recently update the firmware of the 80D.

frankraney Loc: Clovis, Ca.

Your camera records what it is set at. LR reads that data and also has the 35mm equivilent, under metadate select EXIF and IPTC....IMHO too much is put on crop factor....If you want the equivelant of a 35mm then set your camera using the crop factor, using shorter FL to get the same FOV....The biggest difference is the Field of View.... Your Crop factor is 5.41....Not sure what your are asking..

fetzler Loc: North West PA

My Nikon 7200 displays both the actual lens focal length and the 35mm equivalent.

rehess Loc: South Bend, Indiana, USA

I was looking at SuperZoom images.

Dngallagher Loc: Wilmington De.

16-300 Tamron & 150-600 Tamron on a Canon 80D.

Only thing I did not check was if the camera plugged in the data or if it was done by Lightroom.

EDIT - Looks like all the data is from the camera - EXIFTOOL confirms it is there prior to Lightroom developing the raw. (Includes crop factor of 1.6, FOV of 71 degrees, focal length plus 35 mm equivalent focal length, and of course a ton of other interesting info.)

Lens : 16.0 - 300.0 mm
Lens ID : Tamron 16-300mm f/3.5-6.3 Di II VC PZD Macro
Megapixels : 24.0
Preview Image : (Binary data 1538051 bytes, use -b option to extract)
Scale Factor To 35 mm Equivalent: 1.6
Shooting Mode : Aperture-priority AE
Shutter Speed : 1/15
Create Date : 2017:07:10 16:43:49.30
Date/Time Original : 2017:07:10 16:43:49.30
Modify Date : 2017:07:10 16:43:49.30
Thumbnail Image : (Binary data 14920 bytes, use -b option to extract)
WB RGGB Levels : 1686 1024 1024 1783
Blue Balance : 1.741211
Circle Of Confusion : 0.019 mm
Depth Of Field : 0.84 m (0.92 - 1.76 m)
Field Of View : 71.8 deg
Focal Length : 16.0 mm (35 mm equivalent: 24.9 mm)
Hyperfocal Distance : 3.78 m
Lens : 16.0 - 300.0 mm (35 mm equivalent: 24.9 - 466.3 mm)

16-300


150-600

rehess Loc: South Bend, Indiana, USA

I am sorry to have created confusion.
The images I could quickly identify, because of how I rename downloads from here, were from SX-50 and SX-60 cameras, which I thought were closest to where I understood the OP to be coming from.

Dngallagher Loc: Wilmington De.

I recently switched from a Nikon to a Canon and just assumed that a Canon would provide the same info, and after looking at the EXIF right out of the camera, it appears it does, and even more data apparently. I do have an older Powershot sx 10, but I believe that the exif is pretty limited on it.