johnlandon Loc: Rangpur, Bangladesh

No, it can also shows the work quality. Newbies enters without professionalism.

johnlandon Loc: Rangpur, Bangladesh

No, it can also shows the work quality. Newbies enters without professionalism.

Brucej67 Loc: Cary, NC

No, but you can sometimes tell the quality of the lens by the bokeh in the image.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Not a digital image on a device, but prints will show telltale clues of sensor size - imprecise at best. The image's depth of field, curvature, volume distortion at the edges with ultra wide lenses are also telltales for focal length. But can you absolutely nail the details probably not. You should be able to tell the difference between a full frame shot taken with a 600mm lens and a 1" sensor taken with a 8.8mm lens (24 mm field of view) however.

wdross Loc: Castle Rock, Colorado

You say it is a simple question, but it really is not as simple as it sounds. At proper viewing distances for a print, it will be difficult to tell one format from another. If one "pixel peeps" , in other words less than proper viewing distance, a same size print from two different formats maybe can be distinguished. Could one determine the format without a sample to reference from? Probably not.

As far as the angle of the lens, distortion and image compression can give one an idea of whether it falls into a category of wide, normal, or telephoto, but it would be difficult again to determine the actual angle.

jerryc41 Loc: Catskill Mts of NY

No. Looking at the EXIF data, I have 56 items listed, but nothing about sensor size. I checked both DX and FX images. Unless they use a different term for sensor size, there's nothing listed.

TBPJr Loc: South Carolina

For many pictures, no. But for many others, yes: I think it becomes fairly obvious when a picture is taken with a super-wide angle lens or a super-telephoto lens--the angle of view can be discerned at both ends to give one a good idea, plus the distortion and depth of field at a wide angle and the compression at a super-telephoto length; a lot of the time, a picture that has been taken by a super-zoom shows the compression, but the picture quality frequently points to small sensor (i.e., a 4/3); pictures taken in low light (overcast, etc.) often point to a smaller sensor through their relative noisiness, and, in pictures that are captures of birds or other objects in motion, the aberrations and focus issues sometimes indicate a smaller sensor; other challenging light conditions, especially back lighting, can interfere with focus and exposure, and will indicate a camera with less adaptability; and sometimes the muddiness of a picture (usually from too much contrast in the picture) will indicate a less-capable sensor.

On the other hand, I am perfectly capable, as are many others, of creating the same flaws with a full-frame camera, and there are plenty of UHH photographers who can make superior pictures without a full-frame. When people who are careful and capable have the right conditions, they can produce great pictures with much less expensive equipment. Ultimately, experience and attention to detail can eliminate the advantages full-frame cameras have under most circumstances.

So my answer to your question is, "Sometimes.

waegwan Loc: Mae Won Li

Ditto :-)

Blair Shaw Jr Loc: Dunnellon,Florida

HHHHAAAAAAAAAAAAAAAAAAAAAA

SteveG Loc: Norh Carolina

There are just too many factors that come into play concerning sharpness to be able to tell. Even the cheapest kit zoom in the right hands, can show you a really sharp photo wuth good bokeh. There are countless YouTube videos comparing sensor sizes in final prints and countless tips on how to achieve a sharp photo that will show how with even a top quality lens, if it's not in the right hands, will look like what you may think is a cheap lens and camera.

SteveG Loc: Norh Carolina

Ahhhhhh! Don't we miss Johnny Carson! "You are correct sir!"

Longshadow Loc: Audubon, PA, United States

No, but they can surmise telephoto or wide angle by how the image looks for any compression/expansion. For example, railroad tracks. Just can't define what mm focal length.

jaymatt Loc: Alexandria, Indiana

No.

Mac Loc: Pittsburgh, Philadelphia now Hernando Co. Fl.

I don't think I could tell sensor size.
Wide angle and telephoto have characteristics that may make it able to discern which was used.
There are wide angle zooms and telephoto zooms, I don't know know how you could differentiate between and zoom and a prime.

Mac Loc: Pittsburgh, Philadelphia now Hernando Co. Fl.

deleted