enow.com Web Search

  1. Ad

    related to: 150mm to 100mm reducer frame dimensions

Search results

  1. Results from the WOW.Com Content Network
  2. BS National Beehive - Wikipedia

    en.wikipedia.org/wiki/BS_National_Beehive

    The National frames have a long top-bar to the frame (17 in or 430 mm) giving them long lugs of 1 + 1 ⁄ 2 in (38 mm) that rest on the runners. In its original form, the National hive provides 3 ⁄ 8 in (9.5 mm) bottom beespace—that is, the top surface of the frame bar is flush with the top of the box, and the lower surface of the frame is ...

  3. Langstroth hive - Wikipedia

    en.wikipedia.org/wiki/Langstroth_hive

    Langstroth's patent of 5 October 1852 adopted 3 ⁄ 8 in (9.5 mm) as the upper limit of the bee space, slightly larger than optimal, between the side bars of a frame and hive wall, and also reserved rights to use the distance 1 ⁄ 2 in (13 mm) between top bars and inner cover, the latter of which represents a gap larger than optimal. The term ...

  4. Crop factor - Wikipedia

    en.wikipedia.org/wiki/Crop_factor

    The most commonly used definition of crop factor is the ratio of a 35 mm frame's diagonal (43.3 mm) to the diagonal of the image sensor in question; that is, = /. Given the same 3:2 aspect ratio as 35mm's 36 mm × 24 mm area, this is equivalent to the ratio of heights or ratio of widths; the ratio of sensor areas is the square of the crop factor.

  5. Rack unit - Wikipedia

    en.wikipedia.org/wiki/Rack_unit

    Rack with sample component sizes including an A/V half-rack unit. A rack unit (abbreviated U or RU) is a unit of measure defined as 1 + 3 ⁄ 4 inches (44.45 mm). [1] [2] It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby the height of the frame or equipment is expressed ...

  6. Full-frame DSLR - Wikipedia

    en.wikipedia.org/wiki/Full-frame_DSLR

    The edges are cropped off, which is equivalent to zooming in on the center section of the imaging area. The ratio of the size of the full-frame 35 mm format to the size of the smaller format is known as the "crop factor" or "focal-length multiplier", and is typically in the range 1.3–2.0 for non-full-frame digital SLRs.

  7. Medium format - Wikipedia

    en.wikipedia.org/wiki/Medium_format

    The Leaf Aptus-II 12's sensor size of 53.7 mm × 40.3 mm is 92% of the area of a 56 mm × 41.5 mm standard-sized 6 × 4.5 frame, 69% of a 56 mm × 56 mm square-sized 6 × 6 frame, and 45% of the area of a 56 mm × 84 mm 6 × 9 frame. Introduced in December 2010, the Pentax 645D is a 40 megapixel medium-format DSLR. The camera has a 44×33 mm ...

  8. Lenses for SLR and DSLR cameras - Wikipedia

    en.wikipedia.org/wiki/Lenses_for_SLR_and_DSLR...

    50mm F1.4, 17-40mm F4, 100mm F2.8 Macro, 24-70mm F2.8, 70-200mm F2.8. This article details lenses for single-lens reflex and digital single-lens reflex cameras (SLRs and DSLRs respectively). The emphasis is on modern lenses for 35 mm film SLRs and for "full-frame" DSLRs with sensor sizes less than or equal to 35 mm.

  9. Canon RF lens mount - Wikipedia

    en.wikipedia.org/wiki/Canon_RF_lens_mount

    Canon full-frame cameras have used the EF lens mount since 1987. In comparison with that mount, the RF mount's inner diameter is the same at 54 mm. [1] The RF mount's flange focal distance at 20 mm is much shorter than that of the Canon EF and EF-S mounts at 44 mm.

  1. Ad

    related to: 150mm to 100mm reducer frame dimensions