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Old January 4th 19, 04:53 AM posted to rec.photo.digital
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Default Does smartphone angle of view depend only on focal length?

In article , Eric Stevens
wrote:


DSLRs of today are heavier
and more bulky than their eqivalents of the past.


nonsense. they're comparable in size & weight, with digital slrs often
smaller and lighter in weight than film slrs.


Not with a sensor of the same size as the image frame in a 35mm film
camera.


yes with a sensor of the same size.

however, keep in mind that a sensor of the same size as 35mm film will
produce dramatically better image quality, comparable to medium format
film, while an slr with a smaller dx sensor will produce better results
than a camera that uses 35mm film.

thus, for a given image quality, digital cameras are *smaller* and for
a given sensor/film size, both cameras are about the same physical
size, with digital producing much better results. either way, digital
wins.

below are some numbers.

note that the f5 weight is listed *without* batteries, while the d5 is
*with* battery, so an appropriate adjustment was made. the d750 lists
weights with and without battery, so the battery weight was added to
the f100 to compare both.

the size differences are all very minor (under 0.6", at the *most*).

i'm not sure why the dimensions and weight are approximate. you'd think
nikon could somehow manage to get exact numbers.

nikon f5 slr:
https://www.nikonusa.com/en/nikon-pr...e/film-cameras
/f5.html#tab-ProductDetail-ProductTabs-TechSpecs
Power Source: Eight AA-type batteries or optional Ni-MH Battery Unit
MN-30
Weight (without batteries): Approx. 42.7 oz
Dimensions (WxHxD): 6.2 x 5.9 x 3.1 inches

nikon d5 digital slr:
https://www.nikonusa.com/en/nikon-pr...ameras/d5.html
#tab-ProductDetail-ProductTabs-TechSpecs
Approx. Dimensions (Width x Height x Depth) 6.3 in. (160 mm) x 6.3
in. (158.5 mm) x 3.7 in. (92 mm)
Approx. Weight 49.6 oz. (1,405 g) with battery and two XQD memory
cards but without body cap and accessory shoe cover
49.9 oz. (1,415 g) with battery and two CompactFlash memory cards
but without body cap and accessory shoe cover

the nikon f6 uses *eight* aa batteries, and at 1.1 oz each (for nimh,
the most likely type), will add an additional 8.8 ounces, for a total
of 51.5 oz. for alkaline batteries, it would be an additional 6.4 oz, a
total of 49.1 oz, just 0.5 oz lighter, which is not noticeable.
https://en.wikipedia.org/wiki/AA_battery#Dimensions

here's another comparison:

nikon f100 film slr:
https://imaging.nikon.com/lineup/filmcamera/slr/f100/spec.htm
Power source AA-size battery holder MS-12 provided (four alkaline or
lithium batteries
Dimensions (W x H x D) Approx. 155 x 113 x 66mm (6.1 x 4.4 x 2.6 in.)
Weight (body only without batteries) Approx. 785g (27.7 oz.)

nikon d750 digital slr:
https://imaging.nikon.com/lineup/dslr/d750/spec.htm
Dimensions (W x H x D) Approx. 140.5 x 113 x 78 mm/5.6 x 4.5 x 3.1 in.
Weight Approx. 840 g/1 lb 13.7 oz with battery and memory card but
without body cap; approx. 750 g/1 lb 10.5 oz (camera body only)

the d750 is narrower, same height, and slightly thicker due to the rear
display and buttons, obviously required for any digital camera.

without batteries, the d750 weights less (750g v. 785g), as it does
with batteries (840g v. 877g, using four alkaline aa batteries @ 23g
each, as per nikon recommendation). not a significant difference,
certainly nothing anyone would notice without using a scale. with
lithium batteries, it would be almost the same.

you're also ignoring the bulk of all the film one needs to carry (and
keeping it cool if necessary), versus a memory card, or more recently,
sync to the cloud and no memory card (i.e., unlimited photos, something
not possible with film).


^^ you keep ignoring this part ^^

They in no way share
the same form factor.


they most certainly do.


I have owned a few of each and I know you are wrong.


i'm not wrong. see above and below.

film nikon n90:
https://www.keh.com/media/catalog/pr...800x/040ec09b1
e35df139433887a97daa66f/2/4/247143-2149015_01.jpg

digital nikon d40:
https://www.keh.com/media/catalog/pr...800x/040ec09b1
e35df139433887a97daa66f/2/0/208784-2177935_01.jpg


those are very clearly sharing the same form factor, known as a 35mm
slr body.

the differences are so minor that it requires close scrutiny to see
what they are.