We don't usually test a product for ten years before reviewing it, but after a decade of using the Lowepro Photo Sport 300 AW II on an almost daily basis, Managing Editor Dale Baskin tells us why he loves this pack.

The RF 24mm F1.4 L VCM and RF 50mm F1.4 L VCM are part of Canon's new 'hybrid' series of lenses designed to work with both EOS and Cinema EOS cameras.

Canon has announced the latest lens in its EOS VR System. It's intended to be an affordable way for social media content creators to experiment with new media formats.

Can someone explain how fractions and decimals got mixed into the same “number” (eg. 1/2.3) ?Even when the reference of TV tubes was valid, this would be strange!

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What’s the best camera for around $1500? These midrange cameras should have capable autofocus systems, lots of direct controls and the latest sensors offering great image quality. We recommend our favorite options.

Adobe's continued working on its Content Credentials system. We sat down with the head of the initiative to discuss new developments and its future.

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Leica USB-C to USB-C Cable for SL-System Camera. B&H # LEUSBCTUSBC MFR ... Ricoh I-USB180 USB Cable for PENTAX WG-1000 Digital Camera. B&H # RIUSBCUSB180 ...

Find the meaning of the word coaxially. Learn how to use the word coaxially in your day to day life and enrich your vocabulary. Start learning now!

The International Photography Hall of Fame and Museum has announced its 2024 class of inductees, a group that includes photographers, visionaries and historians.

I'm Back and Yashica launch a digital film module as a full product, nearly a quarter of a century after Silicon Film failed.

Could you please tell me the dimensions of a 1/4'' sensor?? I have found two different versions: 3.2 x 2.4 and 3.6 x 2.7. Which one is the correct??Thank you.

What’s the best camera for around $2000? This price point gives you access to some of the most all-round capable cameras available. Excellent image quality, powerful autofocus and great looking video are the least you can expect. We've picked the models that really stand out.

Above $2500 cameras tend to become increasingly specialized, making it difficult to select a 'best' option. We case our eye over the options costing more than $2500 but less than $4000, to find the best all-rounder.

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A faster sensor, improved autofocus and video see Nikon's third-gen mid-range full-framer go toe-to-toe against Canon's EOS R6 II and the Sony a7 IV. We feel its all-round ability lifts it to the top of the pile.

2023715 — The quantity of light hitting the working surface or task is described as the illuminance, which is defined as the amount of light per unit area.

The 'Type' designation given to today's CCD sensors is that it harks back to a set of standard sizes given to TV camera tubes in the 50's. These sizes were typically 1/2", 2/3" etc. The size designation does not define the diagonal of the sensor area but rather the outer diameter of the long glass envelope of the tube. Engineers soon discovered that for various reasons the usable area of this imaging plane was approximately two thirds of the designated size.

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If you want a compact camera that produces great quality photos without the hassle of changing lenses, there are plenty of choices available for every budget. Read on to find out which portable enthusiast compacts are our favorites.

US travel/adventure brand Aether Apparel has made a photographer-friendly waxed field jacket in conjunction with Leica. Is that something we need?

The depth of focus is greatest on the lowest power objective. Each time you switch to a higher power, the depth of focus is reduced. Therefore a smaller part of the specimen is in focus at higher power. Again, this makes it easier to find an object on low power, and then switch to higher power after it is in focus. A common exercise to demonstrate depth of focus involves laying three different colored threads one on top of the other. As the observer focuses down, first the top thread comes into focus, then the middle one, and finally the bottom one. On higer power objectives one may go out of focus as another comes into focus.

They are designed to cast a soft red glow which enables you to see inside your vehicle, yet still allows you to see what's going on outside. The red light ...

When drawing what you see under the microscope, follow the format shown below. It is important to include a figure label and a subject title above the image. The species name (and common name if there is one) and the magnification at which you were viewing the object should be written below the image. All relevant parts of the drawing should be labelled on the right side of the image using straight lines. Lines should not cross. Drawings should be done in pencil, while labels should be in pen or typed. Remember that total magnification is determined by multiplying the ocular x objective.

The theme for our November Editors' photo challenge is 'Fog'. Show us your favorite fog photos for a chance to be featured in our winners' gallery later this month. This challenge is open to photos taken at any time.

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The point at which parallel light rays passing through a lens or reflected from a curved mirror converge, or the point from which they appear to diverge.

We regularly receive emails from readers confused as to the actual size of sensor used in digital cameras. Sensors (CCD / CMOS) are often refered to with an imperial fraction designation such as 1/1.8" or 2/3", this measurement actually originates back in the 1950's and the time of Vidicon tubes. Those who find the specification sheets for these sensors are then even more confused about the relationship between the fraction and the actual diagonal size of the sensor. Below you'll find an explanation and a table of common sensor sizes. We'll be adding this information to our glossary for future reference.

This designation has clearly stuck (although it should have been thrown out long ago). There appears to be no specific mathematical relationship between the diameter of the imaging circle and the sensor size, although it is always roughly two thirds. Each 'Type' represents a class of sensor around these dimensions, rather than specifying an exact size.

What's the best camera for travel? Good travel cameras should be small, versatile, and offer good image quality. In this buying guide we've rounded-up several great cameras for travel and recommended the best.

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The polarizers are mounted in a standard 2″ x 3″ slide mount and are compatible with all FTIR spectrometers. Polarizer elements are 25 mm in diameter and, with ...

We caught up with a few product managers and engineers at Adobe Max, and talked with them about the new features in the company's photo editing suite.

The comapny's bringing its latest chips to some of its most popular computers, and making its nano-texture display available on a laptop.

The course is designed to give you enough understanding to review evidence on treatment parameters and clinical reasoning in selecting various Exercise regimens ...

The field of view is largest on the lowest power objective. When you switch to a higher power, the field of view closes in towards the center. You will see more of an object on low power. Therefore, it is best to find an object on low power, center it, and then switch to the next higher power and repeat.

Canon's newest, non-extending 70-200mm F2.8 L zoom for RF-mount includes features aimed at both photo and video shooters. It also works with Canon's RF-mount 1.4x and 2x teleconverters.

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They may both be correct - each of theses sensor 'sizes' are actually sensor 'types': they are simple the nearest classification that a particular sensor falls into.

When the manufacturers say they've created a camera for 'creators' or vloggers, that doesn't mean they've turned their back on photographers.

aperturen is the inflected form of apertur. German, English. das Apertur [der Apertur; die Aperturen] Substantiv. aperture [apertures] ▽ ◼◼◼noun [UK: ˈæ.pə ...

What's the best camera for travel? Good travel cameras should be small, versatile, and offer good image quality. In this buying guide we've rounded-up several great cameras for travel and recommended the best.

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Recently, a discussion in the DPReview forums posed the question: "What have you learned that you would tell beginners?" We thought we'd share what your fellow readers had to say, along with some insight from our editors.

The compound microscope is a useful tool for magnifying objects up to as much as 1000 times their normal size. Using the microscope takes lots of practice. Follow the procedures below both to get the best results and to avoid damaging the equipment.

2019625 — The TEC-V0345165MPY-WI is designed for a 165.2 mm working distance and is capable of viewing one pixel as 10 µm.

Can a creative project change your life? Photographer Sam Aziz discovered that it can, after embarking on a project to take portraits every day for an entire year along a single iconic street in his hometown of Philadelphia.

*** Don't hoard slides! You can only view one at a time, so that's all you should be holding. Return it before getting another, and if you break it, tell your instructor so that it can be properly cleaned up and replaced! ***

The new Fujifilm X-M5 has sparked renewed interest in Fujifilm’s other compact X-series cameras. We couldn’t help but wonder if a new X-E camera might be on the horizon, and if so, what it might be like.

Table keywords: "Type" refers to the commonly used type designation for sensors, "Aspect Ratio" refers to the ratio of width to height, "Dia." refers to the diameter of the tube size (this is simply the type covertered to millimeters), "Diagonal / Width / Height" are the dimensions of the sensors image producing area.

20241021 — Edmund Optics has announced the addition of optical coherence tomography phantoms and diffuse reflectance phantoms to its product portfolio, now ...