Edmund Optics - edmund optics barrington nj
"Really a gorgeous lens and a must if you're interested in macro photography. ...S lens performing...Sharp, nice color rendering and perfect for video with z camera."
Objectivelens camera
"Good lens...Feels good quality, although I have a full-frame camera...Great versatility, good optics....Overall a good lens. It loses a bit of sharpness at either end of the range and the chromatic aberation could be better. "
"Great quality photos; very flexible controls; appropriate size and weight. The two function buttons (Fn1 and FN2) are a bit awkward to use while composing"
"I recently purchased the FE 14mm F1.8 GM Full-frame Large-aperture Wide Angle Prime G Master Lens for my Sony Alpha E-mount camera, and I am absolutely thrilled with its performance. ...Excellent lens for SONY mirrorless camera. Well designed and with a camera bag."
John C. Long and Michael W. Davidson - National High Magnetic Field Laboratory, 1800 East Paul Dirac Dr., The Florida State University, Tallahassee, Florida, 32310.
"It is a worthy standard zoom lens designed for full-frame mirrorless cameras and perfect for a-series body cameras. ...Designed for Sony Alpha full-frame E-mount mirrorless cameras, this lens is a compelling choice for both amateur and professional photographers seeking versatility without the bulk. "
cameralens是什么
"Excellent Optics...Needs no introduction to this glass. Its optics is excellent. hair-splitting....This lens is amazing! It's clear and sharp... and the camera focuses amazingly fast. "
Where d(tot) represents the depth of field, l is the wavelength of illuminating light, n is the refractive index of the medium (usually air (1.000) or immersion oil (1.515)) between the coverslip and the objective front lens element, and NA equals the objective numerical aperture. The variable e is the smallest distance that can be resolved by a detector that is placed in the image plane of the microscope objective, whose lateral magnification is M. Using this equation, depth of field (d(tot)) and wavelength (l) must be expressed in similar units. For example, if d(tot) is to be calculated in micrometers, l must also be formulated in micrometers (700 nanometer red light is entered into the equation as 0.7 micrometers). Notice that the diffraction-limited depth of field (the first term in the equation) shrinks inversely with the square of the numerical aperture, while the lateral limit of resolution is reduced in a manner that is inversely proportional to the first power of the numerical aperture. Thus, the axial resolution and thickness of optical sections that can be attained are affected by the system numerical aperture much more so than is the lateral resolution of the microscope.
Parts ofcamera lens
"Lens performs extremely well wide open....Im so happy with this lens! Im sooo glad I got it for my own kit! Great lens for portraits!"
World-class Nikon objectives, including renowned CFI60 infinity optics, deliver brilliant images of breathtaking sharpness and clarity, from ultra-low to the highest magnifications.
"Perhaps Fuji's Best Prime Lens......I have a number of Fuji XF lenses, but if I had to choose just one prime lens and leave all the others behind, this would the lens of choice. ...Sharp, versatile lens...I recommend this lens to pair for your fuji x series camera. It's very sharp, produce good back ground separation and has close minimum focus distant. "
"Excellent Optics...Needs no introduction to this glass. Its optics is excellent. hair-splitting....This lens is amazing! It's clear and sharp... and the camera focuses amazingly fast. "
Types ofcameralenses pdf
"Great lens...Excellent quality lens. Works great on my Z 8 camera. I use it for day time sporting events. ...Appreciate the tripod mount on the lens as the additional optics add some weight."
Optical lens
"I just got this lens for my r50 because of the compact size and pairs well with the smaller body if the r5o, excellent lens great image quality"
Camera lensfunction
A lens is the most important part of a camera. It's what captures the image and determines how it looks when you see it on your computer screen or print it out. A good lens will make your photos sharper and more vivid, but it will also last longer and cost less in the long run. Browse the top-ranked list of optics camera lenses below along with associated reviews and opinions.
Difference ofcameralenses
At high numerical apertures of the microscope, depth of field is determined primarily by wave optics, while at lower numerical apertures, the geometrical optical circle of confusion dominates the phenomenon. Using a variety of different criteria for determining when the image becomes unacceptably sharp, several authors have proposed different formulas to describe the depth of field in a microscope. The total depth of field is given by the sum of the wave and geometrical optical depths of fields as:
"Perhaps Fuji's Best Prime Lens......I have a number of Fuji XF lenses, but if I had to choose just one prime lens and leave all the others behind, this would the lens of choice. ...Sharp, versatile lens...I recommend this lens to pair for your fuji x series camera. It's very sharp, produce good back ground separation and has close minimum focus distant. "
"The perfect lens for everyday use!...The perfect lens for a perfect camera! This is a perfect option for everyday pictures and video filming. ...Nice lens...Very versatile lens. Make nice addition to the 24-105mm L lens that comes with the R series cameras. "
"Good lens...Feels good quality, although I have a full-frame camera...Great versatility, good optics....Overall a good lens. It loses a bit of sharpness at either end of the range and the chromatic aberation could be better. "
To operate the tutorial, first select the appropriate objective from the Choose an Objective pull-down menu. The list covers all of Nikon's current objectives in the achromat, plan achromat, plan fluorite, and plan apochromat series. Several specialized objectives are included as well. Next, use the Choose e slider to vary the smallest distance (between a value of 4 and 24 microns) that can be resolved by a detector that is placed in the image plane of the microscope objective.
Camera lens
"Lens performs extremely well wide open....Im so happy with this lens! Im sooo glad I got it for my own kit! Great lens for portraits!"
"Really a gorgeous lens and a must if you're interested in macro photography. ...S lens performing...Sharp, nice color rendering and perfect for video with z camera."
"I recently purchased the FE 14mm F1.8 GM Full-frame Large-aperture Wide Angle Prime G Master Lens for my Sony Alpha E-mount camera, and I am absolutely thrilled with its performance. ...Excellent lens for SONY mirrorless camera. Well designed and with a camera bag."
"It is a worthy standard zoom lens designed for full-frame mirrorless cameras and perfect for a-series body cameras. ...Designed for Sony Alpha full-frame E-mount mirrorless cameras, this lens is a compelling choice for both amateur and professional photographers seeking versatility without the bulk. "
Explore the approximate depth of field for common Nikon objectives with this interactive tutorial. Users have the ability to select from the current lineup of CFI60 infinity-corrected objectives as a function of aberration correction through the use of a pull-down menu.
"The perfect lens for everyday use!...The perfect lens for a perfect camera! This is a perfect option for everyday pictures and video filming. ...Nice lens...Very versatile lens. Make nice addition to the 24-105mm L lens that comes with the R series cameras. "
"Great lens...Excellent quality lens. Works great on my Z 8 camera. I use it for day time sporting events. ...Appreciate the tripod mount on the lens as the additional optics add some weight."