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Places to take photos indoors

Discussion in 'Photographic Locations' started by Legojon, Aug 9, 2019.

  1. PeteRob

    PeteRob Well-Known Member

    It isn't that difficult to appreciate. For a given field of view you need to use a shorter focal length lens (by a factor 2) on a m4/3 camera than on a full-frame camera to take the same picture from the same position. The results are typically viewed at the same size. Therefore you get a greater depth of field in the image taken with the smaller camera.

    Digital compacts (which had very, very small focal length lenses) waved bye-bye to the out-of-focus woes of the 35mm film compact they quickly replaced. Now I understand that image processing to "blur" backgrounds is built in to some cameras (e.g. phone cameras) to [optionally] be rid of their enormous depth of field.
     
  2. Chester AP

    Chester AP Well-Known Member

    It's easy to be impressed by the reviews of exciting and expensive lenses with 'fast' apertures -Sigma currently appear to be chasing customers with lots of money to spend on this type of lens, even though the depth of field at the maximum aperture will be very shallow and the lens will be much larger and heavier than one with a more modest maximum aperture.

    For example, 40 or 50 years ago the major manufacturers made 50 mm F 1.4 (or even F 1.2) lenses, but their range often also included a 50 mm F 2.8 for less wealthy photographers. The F 2.8 lens was also smaller and less heavy.

    If you don't want to use the very shallow depth of field of the more expensive lenses, and want to work at F 8 or F 11 to get a decent depth of field, then there is little point in paying for the F 1.8 lens (best not to use F 16 or F 22 on an APS-C camera body because the image quality may drop at those apertures). In your case, the F 1.8 lens will probably produces it sharpest image at F 3.5 or F 4.5, whereas the 18-55 zoom will probably produce its best image at F 5.6 or F 8 depending on the focal length used. Also, the best possible sharpness may be better on the 35 mm 'prime' lens than on the zoom, but this will probably only be visible if you do large prints.

    Why not do some experimenting to test the depth of field and sharpness, using various apertures? Looking along a fence is the 'classic' shots for doing this, or perhaps shooting across a chess board with pieces in it. Both will clearly show how the depth of field changes with lens aperture, and you can also compare the sharpness of of what is in focus between different shots.
     
    Legojon and RogerMac like this.
  3. Andrew Flannigan

    Andrew Flannigan Well-Known Member

    The best way to learn is by doing. Just take pictures wherever you happen to be. Remember the golden rule of photography: the finest camera and lens is the one you have with you when you see a picture...

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