![]() Are you comparing 50mm f/1.8 with 85mm f/1.8, or 50mm f/1.4 with 85mm f/1.8?īoth 50mm and 85mm on a crop sensor camera can be used for portraits if you understand their different properties.How much working distance is available? 85mm on a crop sensor requires long distance.To compare somewhat equivalent lenses, you could compare 50mm f/1.4 and 85mm f/1.8, and then the question of background bokeh isn't that easy to answer anymore. Thus, these lenses are not equivalent: the 85mm f/1.8 costs more than the 50mm f/1.8. The full-frame DSLR is in contrast to full-frame mirrorless interchangeable-lens cameras, and DSLR. 1 2 Historically, 35 mm was one of the standard film formats, alongside larger ones, such as medium format and large format. However, 50mm f/1.8 has an aperture opening of 27.8mm, whereas 85mm f/1.8 has an aperture opening of 47.2mm. A full-frame DSLR is a digital single-lens reflex camera (DSLR) with a 35 mm image sensor format ( 36 mm × 24 mm ). If you have 50mm f/1.8 and 85mm f/1.8, thus, the preference would be the 85mm f/1.8, because of the beautiful background bokeh. Depth of field calculators don't tell you this! In practice, though, the amount of background bokeh tremendously varies based on the focal length, see this video for example (starts at 8min 0sec). Focal length doesn't affect depth of field, assuming the subject distance is varied accordingly. In theory, depth of field only depends on the f-stop (and sensor size), if you fill the entire frame with the subject (longer focal lengths having longer subject distance). Get an original on eBay and then later see if you want a pricy 85. So you might look at the the many x cost difference, too. I have an original from 1987, first month of production. There are a couple variations and versions you can read about. The camera can focus down to -3EV and has 33 AF points, with 25 of these cross-type. Note that a "nifty fifty" for Canon is cheap and has very good quality. The heart of the Pentax K-1 is a 36 megapixel full-frame CMOS sensor with an ISO range of ISO100 to ISO204800. The normal perspective one might look more intamite, though. That's how a face looks when talking to someone in front of you.įor a picture viewed from farther away (that is, larger than life sized print!) It may seem odd to mix cues it should look like a (big) face seen farther away. Point is, many people might not notice any difference as long as it's over 45mm or so. I'm always telling family members to stand farther back, don't zoom back. ![]() Amazing that some people don't even perceive that a wide angle (way up close) looks wonky. Use your existing zooms you're looking at the perspective not the sharpness. You might also see some side-by-side example of the perspective of a face shot with each length. See what the lens might be good for in terms of how much room you have. Look at this Depth of Field calculator which is actually a full angle-of-view and distance planner. For a small family grouping, not a single close-up, it's too long. First time I used it, the house was bearly big enough to back up far enough.
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