You should also bear in mind that focal length translates differently on a DX camera (such as the Nikon Z 30, Z 50 or Z fc) compared to an FX ‘full-frame’ camera because the sensor on a DX camera is 1.5 times smaller than the FX sensor. For example, if you put a 50mm lens on a DX camera, you will actually get the angle of view and magnification similar to an 75mm lens on an FX camera (because 50 x 1.5 =75).

As angle of view goes down, magnification goes up. For example, a 24mm lens has a wide angle of view (around 84 degrees) and low magnification – perfect for sprawling landscapes. A 600mm lens has a very narrow angle of view and large magnification – great for taking close up shots of faraway wildlife (especially useful when you don’t want to get too close to a lion!).

The terms "igus", "Apiro", "chainflex", "CFRIP", "conprotect", "CTD", "drylin", "dry-tech", "dryspin", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-skin", "e-spool", "flizz", "ibow", "igear", "iglidur", "igubal", "kineKIT", "manus", "motion plastics", "pikchain", "plastics for longer life", "readychain", "readycable", "ReBeL", "speedigus", "triflex", "robolink", "xirodur", and "xiros" are legally protected trademarks of the igus® GmbH/ Cologne in the Federal Republic of Germany and where applicable in some foreign countries.

From 24mm to 35mm, lenses are wide angle. These are beloved by landscape, interiors and architecture photographers, as well as being useful for street scenes and dramatic pictures of the night sky. Get close to your subject and you will accentuate the perspective in the scene. A wide angle is a great travel companion, allowing you to shoot landscapes, cityscapes, people and much more.

A diamond turning machine's spindle includes its bearing, motor, encoder, and any fixturing, such as a collet assembly or machine tool chuck. What's ...

Try: NIKKOR Z 180-600mm f/5.6-6.3 VR, NIKKOR Z 100-400mm f/4.5-5.6 VR S, NIKKOR Z 400mm f/4.5 VR S, NIKKOR Z 600mm f/6.3 VR S

At 300mm and upwards, we have the super-telephoto range. This is most commonly used by sports and wildlife photographers, where it would be impossible to get close to the subject. At this range, and with such a narrow angle of view, it’s usually advisable to use a monopod or tripod to reduce camera movement (although Nikon’s in-camera vibration reduction (VR) and VR lenses can help with that), and also because lenses this size can be heavy to hold for long periods. Telephoto lenses can also be used with a teleconverter, which can double the focal length of the lens, giving you even more ‘reach’.

From 35mm and 70mm, we have the ‘standard’ focal length, which is pretty close to what the human eye sees. Photographers talk about the ‘nifty fifty’ – a large aperture 50mm prime lens such as the NIKKOR Z 50mm f/1.8 S – because a 50mm lens is an ideal day-long companion, suitable for so many different types of shooting, especially in low light situations or indoors. This type of lens also creates a shallow depth of field and great bokeh blur.

igus® provides an online lifetime calculator which calculates wear per km (or mile), calculates the stack-up clearance for your application, a pdf report of your application, as well as other valuable engineering information.  And yes, the liners are easy to replace and offer several ‘quick change’ options. For a video please click here.

Try: NIKKOR Z DX 24mm f/1.7, NIKKOR Z 26mm f/2.8, NIKKOR Z 28mm f/2.8, NIKKOR Z DX 16-50mm f/3.5-6.3 VR, NIKKOR Z 35mm f/1.8 S

Nov 13, 2015 — Eyepieces work in combination with microscope objectives to further magnify the intermediate image so that specimen details can be observed.

If you had a simple lens made of a tube with one piece of optical glass at the front that focused the incoming light rays on a point at the back of the tube, the length of the tube would be the focal length of the lens. Modern lenses, however, use lots of different pieces of glass inside the casing to move light around before it hits the sensor and therefore focal length has nothing to do with the physical length of your lens. You can find two 85mm lenses that are completely different in size while, for example, the new NIKKOR Z 600mm f/6.3 VR S is less than 300mm in length.

Angle of view is how much of the scene your lens will capture from side to side (holding the camera horizontally). A wide angle of view takes in a lot, a narrow angle of view less. Magnification is how ‘close’ you get to the subject of an image with the lens, like a telescope.

LinearRailbearing

Milsolve Decementing Agent used to separate Milbond Adhesive from application systems is available at Edmund Optics.

LinearGuide Rail

Since drylin® is self-lubricating and does not require oil or grease they are ideal in dirty, dusty environments. Since drylin® is based on corrosion-resistant bearing liners and either anodized aluminum or 300-series stainless rails/shafts they are commonly used in splash-water, underwater, saltwater and chemical washdown applications.  We have passed saltwater testing in several major boat manufacturer’s test labs.

Try: NIKKOR Z 70-180mm f/2.8, NIKKOR Z 85mm f/1.8 S, NIKKOR Z 135mm f/1.8 S Plena, NIKKOR Z 70-200mm f/2.8 S, NIKKOR Z DX 50-250mm f/4.5-6.3 VR

Heavy dutyLinearSlide rails

The most important thing about focal length, however, is not what it is, but what it does. Focal length defines two main things about any lens: its magnification and its angle of view.

igus® has the world’s largest ‘motion plastic’ test lab where we perform over 15,000 tests per year.  For an overview of this and the certifications and approvals please click this link.

igus® offers linear rails, pillow blocks and carriages. We offer shaft options in several different material options: steel, stainless and nonferrous options like hard/clear anodized aluminum and carbon fiber, in both inch and metric sizes. Our linear slide bearings , pillow block and carriage options include stainless steel aluminum and diecast zinc.

If you had a simple lens made of a tube with one piece of optical glass at the front that focused the incoming light rays on a point at the back of the tube, the length of the tube would be the focal length of the lens. Modern lenses, however, use lots of different pieces of glass inside the casing to move light around before it hits the sensor and therefore focal length has nothing to do with the physical length of your lens. You can find two 85mm lenses that are completely different in size while, for example, the new NIKKOR Z 600mm f/6.3 VR S is less than 300mm in length.

Linear BearingBlock

When two linear guides are mounted in parallel, with bearings on each guide connected by a plate or carriage, precautions must be taken to prevent binding, or “jerking” motion that can be caused by misalignment between the rails, uneven loads on each bearing, or differences in manufacturing tolerances between rails and bearings. Here are some helpful tips for aligning igus® rails.

drylin® floating bearings offer advantages for nearly all applications. They offer an easier assembly, less adjustment necessary and lower wear and drive force by elimination of misalignment forces on the bearings. To help prevent binding simply mount the linear guides with one guide fixed and the other guide floating. This allows for lower friction-forces, lower wear, as well as being easier to assemble.

Unlike re-circulating ball bearing guides that roll, drylin® linear bearings & assemblies are engineered to slide. Sliding elements made of high-performance, self-lubricating plastics allow the linear bearing assembly to be maintenance-free and resistant to external influences. The special materials also allow the linear bearings to run extremely quietly. By making the switch to drylin® linear bearings, costs are also reduced by up to 40%.  In addition to these benefits, igus® products offer fast shipping times within 24hrs, online service-life calculators and tools for nearly all product lines, and tested reliability.

Majestic offers durable reflective coating with an average of >/=90%R in the visible region typically used for telesecope mirrors. ... We offer protected gold ...

10 PIECE TUBE SPANNER SET ... Please note this item is ordered internationally. Estimated delivery (depending on availability) may take from 12 to 16 weeks.

Linear bearing

Configure your own linear bearing assembly in just a few steps to your application requirements and parameters.  Easily calculate service life and find the most appropriate linear bearing for your application based on your technical specifications. Once you configure your bearing, download CAD files to use in our free CAD library, request a quote, or add to your cart and checkout.

For an easy and painless switch over to drylin® linear bearings & assemblies, drylin® R, T, and W have many bearings that are 1:1 replaceable with competitor systems.

Usually between 70mm and 200mm, a telephoto lens is a popular choice for portraiture and weddings (especially an 85mm focal length) and at the longer end is great for wildlife where you can’t get too close to the subject. At the longer end, a telephoto lens gives you the freedom to shoot as an observer where the subject is unaware of the camera, and so is also great for fly-on-the-wall, reportage-style shooting. This is also the focal length range for many macro lenses.

Surface Roughness Conversion Chart. Ra. (micrometers). Ra. (microinches). RMS. CLA. (N). Rt. N. Cut-off Length inch mm. 0.025.

drylin® rails and slides offer a significant amount of noise reduction compared to recirculation ball bearing systems. In most cases drylin® plastic bearings technology is 4 times quieter (-20b) compared to metal. This is due to our maintenance free sliding elements made of high-performance, self-lubricating plastics. For more information, please click here.

There are two types of lenses: primes, which have a fixed focal length, and zooms, where the focal length is variable. Zooms are super-handy as you often only have to carry one lens around that will be capable of shooting lots of different subjects, from landscapes to portraits, so it’s great for travel. Prime lenses, however, are usually lighter and are often available with larger apertures than zooms.

The lens mount is a mechanical interface that securely attaches a camera lens to an imaging device, such as a sensor or camera module. This crucial component ...

Industries:Food, Beverage, Packaging, Camera and Film Equipment, Marine, Medical Technology, Home Office, Gaming Furniture

LinearBallBearing

Camera lenses are usually described by two main factors: one is the aperture or f-number (the maximum size of the hole where light gets through to the sensor, where the lower the number, the bigger the hole). The other is focal length, which is in millimetres. You will usually see lenses described by focal length first and then aperture, for example 85mm f/1.8.

Large aperture laser power meters for wide beams. To accommodate the widest laser beams, Gentec-EO offers a selection of large aperture laser power meters and ...

Yes, we cut rails in-house to an overall +/-2mm length tolerance on a chop saw.  The rails are cut to the desired length with the holes symmetrically placed.  We also carry no-hole rail and are able to customize the parts based on your needs—simply provide us with a drawing and we are happy to help. We also offer a linear shaft configurator which provides both 2D and 3D CAD files, assigns a part number, and allows you to order online.

The location of both the drive force and payload's center of gravity, as well as load-force, speed, and precision requirements need to be taken into consideration.  Typically drylin® has a clearance range of 0.02-15mm, but we do offer many preloaded or adjustable versions.

Linear motion bearingmanufacturers

3M OX protective eyewear with DX anti-fog, anti-static & anti-scratch treated clear polycarbonate lens for over-the-glass coverage for prescription glasses.

Linearslidebearing

Yes, igus® has options for curved rails in full circle, half circle and quadrant. We also have options in  convex and concave. Additional information can be found here

Yes, in most cases igus® products can be easily retrofitted to replace up and running systems. Our drylin® T and R are often used as a direct replacement recirculating ball bearings systems, and even drylin® W has a cross-reference option.

Lens choice can often be difficult, especially with so many options in the Nikon Z mount range (and access to another 300 or so Nikon F mount lenses with the FTZ II converter). So, here’s a quick guide to the different focal lengths and what they often get used for to help you.

Fresnel Lenses. A Fresnel lens is a compact optical lens designed to provide excellent light gathering ability in a lightweight package. Typically fresnel ...

The focal length of a lens also affects the perspective of an image. With a long lens, perspective tends to be compressed, with objects in the background appearing closer to the subject in the foreground, whereas with a wide-angle lens the relative distance between two appears greater.

igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsibushi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention in this website. The products offered by igus® are those of igus® GmbH

Check out these images of the same scene shot from the same position but with focal lengths from wide angle 24mm to telephoto 180mm and you can see how the angle of view gets narrower as the magnification gets larger.

Depending on the size we stock rails in lengths between 2000mm – 4000mm.  Most sizes can be joined together.  For more information please click here.

Any lens with a focal length of between 8mm and 24mm is usually described as an ultra-wide. You’ll be taking in a huge angle of view of what’s in front of the camera. These are lenses for getting in really close with your subject to create drama and are also used extensively for astrophotography. However, at really low focal lengths there will be significant distortion at the sides of the image where straight lines start to look curved. Ultra-wides are one the hardest lenses to master but, with effort, they can deliver incredible results.

Camera lenses are usually described by two main factors: one is the aperture or f-number (the maximum size of the hole where light gets through to the sensor, where the lower the number, the bigger the hole). The other is focal length, which is in millimetres. You will usually see lenses described by focal length first and then aperture, for example 85mm f/1.8.

But there’s more. Depth of field determines what part of the image is in focus going from front to back. Lenses with longer focal length tend to have a shallower depth of field, meaning you can focus on and separate (or isolate) a particular object far away, whereas shorter lenses have a deeper depth of field, which means you can get more objects in focus throughout the image.

Try: NIKKOR Z 20mm f/1.8 S, NIKKOR Z 14-30mm f/4 S, NIKKOR Z 17-28mm f/2.8, NIKKOR Z DX 12-28mm f/3.5-5.6 PZ VR, NIKKOR Z 24mm f/1.8 S