Posts tagged ‘lens’

Find out your lens ’sweet spot’

May 7th, 2010

photo lens equipment sweet spotLenses giving a various sharp image of the surface depends on several things. All lenses have also areas where they are most sharply over the entire image area so-called “sweet spots”. It is important to know their equipment and use it as efficiently as possible. You can easily find out which area your particular lens gives the best pictures.

It is easiest if your lens is a fixed lens. Then, simply find the aperture settings that give those really sharp images. It allows you to easily search your way through if you set the camera to “Aperture” mode or “Av” as it tends to be on camera. Then choose a strictly contrast rich motif and take pictures with different aperture positions. You can then easily see which aperture that give the best pictures. Experiment with different images and get to know your equipment properly.

You can also find out where your lens is at its best through hand -SLR-gear which they have conducted tests of different lenses. If you are lucky you will find that your particular lens has been tested. I recommend strongly that the course you buy a fixed 50mm normal lens that has a brightness at 1.8 which is the smallest aperture the lens can handle. I have the Canon and the 50mm: 1.8 II has been tested and you can clearly see that the 8.1 aperture mode so do not look so good blurindex. However, the lens is smooth and well blurindex a wide aperture range from 2.8 and upwards. Here you will get sharp images over the entire surface.

A zoom lens is much trickier to find sweet spots in practice. You must of course try different shutter speeds and see how great the focal length to act against different aperture. Is it slower shutter speeds so you can find the best sharpness in the upper segment. I have noticed that my Sigma APO 70-300:4,5-5,6 has the best sharpness at shutter speeds around 180-250mm aperture and then with the 8 and up.

Now to catch the best photos you should always keep within the best area. Photography is an art form, but we need to learn your equipment. That is what is your paintbrush and your colors. You can not create good images if you do not get to know the conditions.

Canon 50mm: 1.8 – good sharpness with cheap lenses

February 28th, 2010

photo lens 50mm 1.8My second camera is Canon and i have it borrowed out to my brother. Taking photos show that a new world opens up with the fixed lens at 50mm: 1.8 and I have been a little hard to see why they insist on passing a crude zoom lens with startup packages. I can take much better pictures with the cheaper fixed lens at 50mm, which has both improved brightness and sharpness across the image. Since i wrote this the quality of the zoom-lens improved and are stabilized too.

It seems quite clear that they have been screwed over and over when you realize how much better images as the cheap fixed lens does. Okay, I may run more because the zoom can sit in your feet, but the images are huge much better. Furthermore, I can shoot in lower light indoors and I think most beginners in the photo is more than served than to avoid moving around. Are you buying your first SLR so skip the half dodgy kit-lens (since i wrote this kit-lenses has improved though) and get a 50mm fixed lens instead. Then, to get a zoom lens, it is still better to go for a little longer focal length.

My advice to you who like to get SLR is to buy a fixed lens on 50mm and then obtain an economic lens and Canon has, I believe that their new 55-250mm can be an economical option where you get a very good zoom lens with Image Stabilizer . The problem with cheap lens is the brightness which is not at all particularly good.

What is frightening is that many retailers look to the cheap option is difficult to obtain by small stocks and long waits. I had to wait three weeks before I got my fixed lens. They obviously want you to buy the more expensive options where they have higher profit margins. They bite themselves in the foot and you make sure to order the more expensive option and force then to have to wait more. We as customers can control the market by requiring that there be good cheap quality products in stock. The complainant and above all do not buy the more expensive option because it is what they have in stock.

You will find pictures with the lens here and here (if you refresh the page will be more random images).

Using an old Lens to create a new photo

February 23rd, 2010

photo spice cinnemonCreating a new picture using an old lens. This is taken with my OM Macro 50mm/3.8 and is a quite useful lens with the E-3. The composition let the eye stuck on the bokeh creating a gradient contrast to the sharpness of the motif. You eye will lead towards the gradient though you want to watch the motif. Thus the sharpness and the blur contrast each other.

I am using Bibble 5 Pro and the lens to lift the bokeh. Using Gimp and layermask to prevent the sharpness of the motif.

Find new angles with a prime lens…

November 7th, 2009

bench outdoors photoWith a prime lens in this case a Canon 50mm:1.8 you will look for angle as you are moving more with it. When you are using a zoom you will stand still more looking for good angles. The lens is cheap and let you get sharp pictures and finding new angles. I use it together with my camera when shoot streetphoto.

Here the eye can explore the surroundings with an empty bench as the focus the Exif will tell you that the lens is 50mm and the aperture used is 2.8. taken to let the sharpness spread over the photo.

Find the photo at Ipernity

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