photography. Furthermore, the smaller sensor size of Micro Four Thirds incurs a2x crop factor, effectively doubling the focal length of a lens. Mounted on an Olympus camera, a 50mm lens behaves like a 100mm lens, giving you telephoto reach from a smaller and cheaper lens compared to full-...
Focal Length FL (mm) to Apply Magnification 20X (12) 10X (9) 100X (8) 1X (8) 50X (7) View All Numerical Aperture NA 0.80 (7) 0.25 (4) 0.30 (4) 0.40 (4) 0.50 (4) View All Type Microscope Objective (55) Fluorescence Filter Kit (46) Tube Lens (2) Resolving Power (μ...
The performance doesn’t change no matter which the focal length you use, or if you activate the built-in converter, and this is also valid for fast moving subjects such as birds in flight. E-M1X, 1/2000s, f/4.5, ISO 400 – 400mm With super telephoto lenses, the lens can ...
Pros: extends with focal length, aperture reduces with focal length Summary: Love this lens, works great with a 25mm ext tube for close ups, good in low light and for portraits Jon S. 6 June 2009, 09:18 Build quality Optical quality Value for money Overall IP 68.149.x.x O...
tube, this is controlled automatically by the camera depending on the focal length the lens is set to. The camera can operate the flash in first or second curtain mode, and a switch provides a setting for use with the telephoto or wide-angle converters. With a guide number of 40 it is...
focal length lens can fare better. At the maximum relative aperture the Olympus lens performs very well too. The MTFs we get there are in the range from 43 to 47 lpmm so the images are sharp indeed. Only the best lens of 24–70 mm f/2.8 class which have been tested by us, ...
Lens type Zoom lens Max Format size FourThirds Focal length 150–400 mm Image stabilization Yes CIPA Image stabilization rating 4.5 stop(s) Lens mount Micro Four Thirds Aperture Maximum aperture F4.5 Minimum aperture F22 Aperture ring No Number of diaphragm blades 9 Optics Elements 28 Grou...
Re: macro lens or extension tube or macro converter for Olympus OMD In reply to busybe • May 5, 2018 4 For shorter focal length lenses macro tubes work great, for longer lenses something like a Raynox works a lot better [the longer you zoom, the more magnification] I'm using ...
claim 1, wherein the microscope objective lens satisfies the following conditional expression (4) 0.2<D/f<2 (4) where, D denotes the sum of thicknesses of all lenses included in the microscope objective lens, and F denotes a focal length of the overall microscope objective lens system...
−20≦fR/f≦6where fRis a focal length, in millimeters, of the rear group as a whole. 3.A microscope objective according to claim 1, wherein the following condition is satisfied: 0.3≦|R1/f|≦0.5where R1is a radius of curvature of the object-side surface of the meniscus lens compone...