The 50mm standard lens

Craig Roberts explains why the 50mm is his preferred focal length lens.

Ask any photographer what their favourite and most versatile lens is and the answer will be widely varied. I wouldn’t hesitate in answering my 50mm lens. This fixed focal length lens, created to more or less replicate what the eye sees, was the standard lens sold with all cameras in the 80s.
If you bought your SLR in the last decade, you may never have owned or heard of such a lens and therefore may think my reply quite strange. Nowadays, when you buy a Pentax SLR, especially digital, it comes fitted with either a versatile 18-55mm or 28-80mm zoom lens that covers the 50mm focal length within its range. The trouble is, that by not having this focal length as a prime lens, you are missing out on the sheer range and versatility that this type of lens offers.

The beauty of this lens is that it’s ideal for the widest range of subjects, including some that, if using a zoom lens, you can’t touch. Owners of older manual focus and autofocus SLRs may already have one of these basic lenses, although you may not use it as often as you used to.

What makes this lens ideal is its angle-of-view is the closest to our own eyes and the easiest to use to get the most natural looking shots. You can even visualise shots without putting the camera to your eye. This doesn’t mean this lens is boring compared to the extremes that a telephoto or wide-angle will give. On the contrary, it’s just a lens that works well and keeps your photography simple, especially when you are still learning and getting to grips with your camera.

Secondly, it’s an ideal lens for portraits, as long as you remember not to get too close to your subject, which will lead to unflattering distortion to your sitters face. It works especially well with full-length portraits, but you can get some very nice head and shoulder shots. Landscapes are another subject that this lens is perfect for, allowing you achieve the ideal composition when perhaps a wide-angle would give you too much empty space in the foreground. Stop the lens down beyond f/11 and you will get plenty of depth-of-field to achieve front to back sharpness in your pictures.

You can also successfully use this lens for close action shots, especially where you want some space around the subject, which can greatly help emphasise movement, by giving your subject an imaginary space to move into in the picture.

With a minimum focus of just 45cm on some models, the 50mm also makes a fine job at working as a close up lens too. Although it won’t replace a genuine macro lens for ultra close ups, there are many still life subjects that it will suit, as well as being close enough to capture abstract subjects and picking out patterns in a wide range of objects.

If you don’t have a genuine macro lens, you can turn your 50mm into a stripped down macro lens, simply by fitting it the wrong way round on your camera with the aid of a reversing ring. You will lose autofocusing and TTL metering, but you will get the 1:1 magnification that a macro lens offers. Not bad for the price of around £12!

Where a 50mm lens really comes into its own is in low light. The average widest f/stop for the 50mm is a fast f/1.7, but some versions open up to f/1.2. The benefit is the difference between getting and missing a shot. An f/1.2 model is around three stops faster than a comparable zoom with maximum aperture of say f/3.5, so you can carry on shooting, where the shutter speeds with a zoom attached are so low that camera shake or subject movement would be inevitable.

Couple this with the fact that a 50mm is so much lighter than a zoom, making hand holding at lower shutter speeds much easier, its easy to see how it will greatly increase your chances of getting that shot in the bag when you would have to give up with a zoom lens.

It also means you can get the shot without sacrificing quality by switching to a faster film or a higher CCD ISO speed, which would inevitably mean more grain or noise and a generally a less sharp photo.

With such a wide maximum aperture, tons of light floods in through the front elements. In low light the benefit of this will be immediately obvious and will greatly aid your focusing, especially when working in manual.

Because the 50mm is a lens of simple construction, it used to be cheap for manufacturers to make and for us to buy – partly the reason why it was bundled with older cameras. The lack of demand, caused by more versatile zooms, means the cost of production has changed and the standard lens is now more expensive than a budget zoom, but the image quality it delivers is superb. A 50mm is pin sharp from corner to corner of the frame and will beat most standard zooms hands down in quality shoot outs.

If you have one hidden in a cupboard dig it out, polish it off and keep it handy in a corner of your gadget bag. You’ll never know when it will prove its worth. If you don’t own one you can seek one out second-hand. You can pick a 50mm up for as little as £20.
The standard lens offers us so much in such a small size – I certainly wouldn’t be without mine.

By: mnkadao 2303 days ago
Which lens is better for learner
By: larry 1144 days ago
I couldn't agree with you more on the 50mm. Would not be out in the field without it. It's a great general walk around lens. I own two of them (1.4 & 1.8 AIS Nikkors). Would never sell them. Ever. If you shoot with them vertically, they could almost pass as a very slight wide angle. So here's to the 50mm and it's ability to stay in some manufacturers line up....
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