Why fixed aperture lens

The expensive part — or parts, in fact — are the lens elements required to produce good image quality at a wide aperture. That requires precision glass, often made of exotic materials, very carefully aligned.

Removing the aperture control mechanism may save a little bit, but doesn't give you any of that. And by the time you have invested enough to get a quality wide-aperture image, adding the aperture control is such a small add-on cost that it is worth it every time. Aperture is an important basic principal of photography. Not having a choice would be a huge hindrance, as your only options for controlling exposure would then be ISO which you want as low as possible for noise reasons and shutter speed.

With those numbers, the lens can be tiny, as seen in the picture:. The very small amount of glass in that lens is probably the primary reason that it costs as little as it does.

Other contributors to the low price are the simple focusing mechanism and the lack of any electronics. Surprisingly, fixed aperture lenses are actually the most popular in the world. Every mobile phone has a camera witch such lens, and there are far more mobile phones than full-size cameras. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams?

Learn more. Why are fixed-aperture lenses not more popular? Ask Question. Asked 7 years, 10 months ago. Active 6 years, 7 months ago. Viewed 2k times. Improve this question. Kartick Vaddadi. Kartick Vaddadi Kartick Vaddadi 4, 9 9 gold badges 46 46 silver badges 87 87 bronze badges.

Learning about aperture is one of the core fundamentals of photography, but it can also be confusing with all those numbers on especially on the barrel of your lens. How can you tell?

The Nikon mm lens has a focal range of 70mm at the short end and can zoom out to mm. Also keep in mind that apertures are fractions — the larger the number, the smaller the opening in the lens and the smaller the number, the larger the opening.

With a constant or fixed aperture lens, the aperture functions independently of the lens focal length. The barrel of the lens does not extend or retract when the focal length changes. Generally, variable aperture lenses are less expensive. Many manufacturers bundle them in a package deal when you purchase the camera body.

You get a camera body and a decent lens for a good price. The manufacturer takes some of the guess work out of the equation. We looked at cameras with selfie-friendly screens, wide-angle lenses, microphone inputs and great video quality, and selected the best.

Submit a News Tip! Reading mode: Light Dark. Login Register. Best cameras and lenses. All forums Beginners Questions Change forum. Started Mar 26, Questions. Forum Threaded view. Mar 26, Martin Hi, Heres a quick question from a beginner. Thanks in advance for any help. Kind Regards Martin. Reply to thread Reply with quote Complain. Reply Reply with quote Reply to thread Complain. Hank's gear list: Hank's gear list. Brian A. You the wrong terminology that make you miss completely the subject.

It is a constant maximum aperture lens. Most cellphones have fixed aperture lenses. Chimere's gear list: Chimere's gear list. Hank wrote: jrtrent wrote: As I pointed out in an earlier post, Nikon sometimes uses the term fixed aperture on its website to refer to constant aperture zoom lenses. F Forum M My threads.

Latest sample galleries. Tamron mm F2. After looking through online reviews, we were able to find the best options on the market. For more in-depth looks at the lenses listed below, click the name of the camera system to be taken to the reviews. These charts list the lenses and the associated camera system. They also include everything from ultra-wide angle lenses to telephoto and prime lenses. My name is Lee and I love photography and learning.

I received a Master of Fine Arts in Photography in and have worked as a university professor for the last 10 years in addition to being a working photographer. I started this website to learn more about digital and film-based photography and to provide a resource for all of my students. Whether you are a film photography professional, enthusiast, or a beginner picking up a new hobby, the Contax G series cameras have unique features that separate them from all of the other 35mm Fujifilm Instax Mini is a small camera that takes and prints instant photos using the Fujifilm Instax Mini film.

This camera creates photos which usually takes about 90 seconds to develop once Skip to content The first time you set out to buy new lenses for your camera, you may find yourself confused choosing between fixed or constant aperture and variable aperture lenses. Lens automatically adjusts the minimum aperture available based on your focal length. Table of Contents hide. Fixed Aperture Lenses. Variable Aperture Lenses.

Other Types of Zoom Lenses. Why Does the Aperture Change? Best Performing Lenses. Canon EF. Canon R. Nikon F. Nikon Z.