Achromatic doublet design and optimization - achromatic aberration
If you’re an architect, then you know that the devil is in the details. And when it comes to photography, one of the most important details is perspective.
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In 2018 you can use camera raw to fix and overcome barrel distortion use lens corrections, it is awesome. The software has become so good that barrel distortion is far less of an issue.
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Generally, barrel distortion occurs when a wide-angle lens is used to photograph a subject with strong vertical or horizontal lines. Especially when photographing architecture, it is important that verticals stay straight.
Simply, objects closer to the camera appear larger and straight lines are curved and objects in background appear smaller and further away.
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Here’s the latest version of this cleverly-designed, contemporary-style floor-standing magnifier lamp for craft and hobby use. Large 6″/150mm lens provides 2x magnification and is surrounded by 21 little LED bulbs for maximum brightness, minimal heat and silent white, daylight-effect lighting. A flexible gooseneck arm allows the lens to be re-positioned at almost any angle, while an integral handle near the lens is helpful for more precise positioning.
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Yes, there are several practical applications for lenses that use total internal reflection. One example is in fiber optic communication ...
When shooting with a wide-angle lens always avoid putting subject matter in the edges of the frame. Barrel distortion increases exponentially as you move away from the centre of the lens. Photographing a group shot with a wide angle well often turn one or two members into a cone head.
See the thing is, as a photographer can shoot anyway you want. Use distortion, or make the shot look crazy. Or make your images look normal it is up to you.
We earn our income by making our subjects look good. So, barrel distortion can really mess up your photography, and it can stop a lot of clients from ever hiring you in the first place.
Motion blur is an interesting effect that can be used in photography to create a sense of motion. It can be used to convey a feeling of speed or to show the motion of objects in a photograph.
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I do not want to tell anyone what to do with their photography, that is there decision. If you want to avoid barrel distortion in your photographs here are some tips. Here is 2012 Robert to explain it:
So, it has been 7 years since I originally wrote this post, “5 Tips to Overcome Barrel Distortion”. I would say I am bit wiser, and a little less “this is the way it is!”
If you're a photographer, chances are you've considered renting a photo studio at some point. After all, having your own space where you can control the lighting and environment can be a great way to get the perfect shot. But is it worth it? Let's take a look at the...
These photographs of tall buildings in Toronto will give you some basis as to what I am talking about. Basically, a convex mirror effect is applied because the lens is bending the light, forcing a larger image area to be recorded on a smaller capture service. Or in super confusing mathematical formula format: R=(a* r ^ 3 + b * r ^2 + c + d).
There is still some relevant information in here regarding the use of wide-angle lenses in photography. As a commercial photographer traveling throughout Canada, I use a lot of different lenses, almost everything.
Whether it’s an old family photo, a treasured painting, or a vibrant print, adding artwork to your home is one of the most effective ways to make a space feel warm and inviting. But before enjoying your new artwork, you must hang it up!
Magnifying glasses are frequently used for reading small letters or observing small objects with a moderate amount of magnification.
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I also wrote this other one on how to use a wide angle lens properly. Also check out: What is the Perfect Shutter Speed?
Shooting tall buildings with a wide angle lens is a prime candidate for barrel distortion. Don’t be afraid to leave room around the subject and crop down the image, helping you overcome barrel distortion. © Robert Lowdon
Users can set the lamp up in various ways to suit their needs by virtue of a highly versatile selection of supplied accessories. These include a power adaptor for mains use and a battery box for cordless use; plus a giant plastic clamp that enables it to be converted easily to a clip-on table-top lamp. There’s also a table base so you can shorten the height of the pole and turn it into a free standing desk magnifying lamp too if required.
On a 35mm format camera a focal length of 50mm is almost identical to that of the human eye. Coincidentally, what you see is what you get. Furthermore, I strongly believe every person interested in photography should learn on a 50mm lens first before moving on to different lens types. Any lens with a shorter focal length will cause barrel distortion.
When as a photographer, you shoot for a client, things get a little different. Your getting paid for visually representing a location, item or person accurately.
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Shooting a panoramic image allows you to use a lens with a longer focal length yet still capture a wide field of view. I will often shoot two or three image pans so I can create the exact image I want without adding distortion.
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A Fisheye looks good in maybe 1% of the instances you will have the opportunity to use one. It is a specialty lens that is more for dramatic effect.
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There’s a lot that goes into taking a great photograph. Composition, lighting, and timing all play a role. But one of the most important elements of a great photo is depth of field. In this blog post, we’ll break down what depth of field is and how you can use it to take better photographs.
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How Do You Keep Visitors On Your Website For Longer? We Found Out The Answers. Getting people to visit your website is one thing. Getting them to stay on it is another. Connecting with onsite visitors and engaging them with your content is one of the most important...