Digital SLR Lens Reviews / Slr camera lens

Sigma Zoom Wide Angle AF 17-70mm f/2.8-4.5 DC Macro Autofocus Lens for Digital SLR Cameras From SIGMA List Price: $479.95 Price: $327.00 Availability: Usually ships in 2-3 business days Ships from and sold by 47th Street Photo 5 new or used available from $327.00 Average customer review:

Customer SLR Camera Lens Reviews

Great lens for a reasonable price,

I’m using this wide lens with a Canon Rebel XTi. There are many things to like about this lens: a) its ideal focal range for inside and outside shots. It is ideal for walk-arounds, b) the IQ is very sharp, in fact I find little difference between it and mt Canon 50mm f/1.4 fixed lens, c) other IQ features the 70mm lens capabilty is cool — you can get about an inch away from an object and still get a sharp focus,and best of all e) the price is reasonable. One negative is that compared to the Canon lenses, it doesn’t focus well in low light; you may need to manual focus in some cases. Another very small negative is that it is slightly heavier than my other lenses and feels a little unbalanced on my XTi but this is almost not worth mentioning. Of my 5 lenses, (4 are Canon’s) I would grab this first if I could take only one with me. I highly recommend this sigma 17 70mm lens.

I really like this lens sigma,

I have been searching for a better walk around lens for my Canon Rebel XTi since the Kit lens is just to soft and suffers from chromatic aberration. I had been thinking about and have tested a Canon 17-40L in the store and borrowed a friends Canon 24-70mm f/2.8L at the zoo and thought they were both pretty sharp lens. My friend recently purchased a Sigma 17-70mm F2.8-F4.5 Macro DC lens and asked if I wanted to try it.

Imagine my shock when I got this sigma macro lens home and it blew away not only the and Canon 24-70mm but also my Canon 70-200 2.8L in sharpness!!! My new Canon 17-40 F4 L is sharper though This lens is so tack sharp you had better wear gloves when you handle it!! The images were razor sharp edge to edge at all apertures.
This sharpness is great for landscapes cityscapes, macro shots etc but a little too sharp for portrait as every little blemish is shown!

And the flash problem I was having with my Rebel XTi was all kit lens. This sigma 17 70mm lens using indoor flash just plain rocks with even lighting edge to edge using my Canon 430EX Speedlite even at 17mm and no sign of chromatic aberration I was having. Just one warning for those without external flash the lens hood will cast a shadow on the bottom of your photos if you are using the built in flash.

Another surprise was the auto focus which has to be the fastest non USM auto focus I have ever used. It won’t quite keep up with my Canon 70-200 2.8L but it was close. I had my daughter run towards me with the lens at 70mm zoom from 40 feet away and got 5 good focus shots in sports mode with the Sigma and 8 good focus with the Canon.

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Your digital camera will last longer if you take steps to take care of it from the beginning. Your lens is your digital camera’s eye to the world. It is a very sensitive part of your camera. Your digital camera will last longer and take better photos if your keep your lens clean.

Some preventive measures you can take are not to touch the lens with your fingers. Once the lens is scratched, you will need professional assistance to repair the damage. Your fingers can also leave oils from your skin, which are not easy to remove. When your digital camera is not in use, always put on the lens cap. This is such an easy task but it will save your lens from getting dusty or dirty. Many new point and click digital cameras have an automatic cap that closes over the lens when the camera is turned off. This is a great added feature to look for when buying a digital camera.

You need to keep the body of your digital camera clean and free of dirt and dust. Keep your camera in a case or bag when you are not using it. If the digital camera does get soiled use a soft lint free cloth to wipe it off.

Clean your lens only when necessary. A little dust won’t affect your photos. These hint may help you clean your lens.

* Before cleaning your lens, hold your digital camera upside down and use a bulb brush (a bulb blower and brush combination tool) or lens pen to get any dust off your lens. The lens pen has a moveable brush on one end with non-liquid cleaner on the other end to remove fingerprints and smears.

* Or you could use a can of compressed air to remove dirt or dust. Be careful with the compressed air by suddenly lower the temperature it can crack or damage the lens. The can of air can blow contaminates on your lens along with the air. If you decide to use the can of air instead of the bulb, hold the can straight and start blowing before you aim it at the lens. This should remove the dust from your lens.

* Now for any stuck on dirt you will need to use a lint free cleaning cloth and lens cleaning fluid. Never use a dry cloth on your lens. And never a use a napkin, paper towel, facial tissue or eyeglass tissues. These may scratch your lens. Always put the cleaning fluid on the cloth never on the digital camera. Don’t take the chance of getting the fluid under the lens. Use a light circular motion to clean your lens.

* You can also buy a microfiber cloth, which is antistatic and won’t scratch, streak or smear the surface. This microfiber cloth will only needs lens cleaning fluid for stubborn smudges.

A little care and proper tools can keep your digital camera taking photos for a long time.

Submitted By: CARL WILSON

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Digital cameras are one of the greatest inventions of modern times. We are so fortunate to have this modern convenience called Digital Photography. To be able to capture a precious moment or beautiful scene at the click of a button, is something we should not take for granted.

Many beginners find digital photography rather challenging and rightly so. Today, more and more digital cameras are being created and it seems like the more digital cameras they make, the more difficult they become to use.

I own a Canon Powershot S3 IS. I purchased this digital camera about a year ago and I still haven’t utilized all of the awesome little features this camera has to offer. Now you may not want or even need a camera with tons of features. It really depends on the type of pictures you plan on taking.

Regardless of the camera you own or are planning to own, you should have a well rounded knowledge of digital photography. I hope the following 20 tips for taking digital photography will prove to be useful in your quest for taking better photographs.

1. Know your camera. One of the biggest mistakes you can make is not taking time to learn about the features of your camera. Don’t be lazy. Read your instruction manual.

2 - When shooting sunny outdoor shots, try adjusting your white balance setting from auto to cloudy. The auto setting will make your shots appear too cold. When you change it to cloudy, it will increase the warmth of your pictures.

3 - If you are looking for superior image quality, the ability to use a variety of lenses and print large high quality photos, then considering a Digital SLR Camera.

4 - Use your flash outdoors. Sometimes, even on a sunny day outdoors, there is still a need for a flash. If the sun is directly over head or behind your subject, this can cause dark shadows to appear on the face. The flash will help lighten the subjects face.

5- Sometimes simply turning your camera and taking vertical shots can make a world of difference. Experiment more with vertical picture taking.

6 - Do not put your subjects directly in the center of your shot. Move your subject off center to inject more life into your photos.

7 - Learn how to hold your digital camera. One of the most common problems beginners face is the shaking of the camera because they are not holding it properly. Of course, the best way to avoid shaking the camera is to use a tripod. If you don’t have a tripod, then you should be holding your camera with two hands. Put one hand on the right hand side of your camera where you actually snap the photo and the other hand will support the weight of your camera. Depending on the camera, your left hand will either be positioned on the bottom or around your lens.

8 - Learn about the “Rule of Thirds”. This is a well known principle of photographic composition that every beginner should become familiar with. Do a search online and you will find many tutorials on this subject.

9 - Look at other photographers work. Just spending time studying the work of other photographers can provide loads of inspiration.

10 - Join online photography communities. Get active and ask questions.

11 - Do not compare your photography to anyone else.

12 - Do not copy the work of other photographers. Try and develop your own unique style.

13 - Do not leave your batteries in your camera if you don’t plan on using your camera for long periods of time. Some batteries run the risk of leaking and this can damage your camera.

14 - Subscribe to a good photography magazine. Read books on photography.

15 - Find experienced photographers to go out on shoots with.

16 - Post your photographs in online forums. Learn to accept criticism.

17 - Try taking your pictures in RAW format. RAW is a powerful option available in today’s digital cameras where no in-camera processing takes place. This allows you to do all processing using your favorite image editing software.

18 - Don’t buy the most expensive photography equipment right away. Practice and learn about photography using cheaper equipment first. After you have been taking pictures for a while, you will then know what kind of equipment you will need.

19 - Invest in a tripod. Some of us have very shaky hands. If you can’t stop the shakes, then get a tripod. It will make a world of difference.

20 - If you are not able to carry your equipment with you everywhere, make sure you have a note pad handy. This way if you find a nice shot, you can write it down and visit that location at a later date.

Author: Ralph Serpe

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