DaydreamJay
Suspended / Banned
- Messages
- 496
- Name
- Jason
- Edit My Images
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I thought I'd make a post about this subject as it seems I wasted £300 on a lens that doesn't do the job I expected. Many people recommend 50mm lenses for portraits but even on a crop sensor they are too wide angle. They are ok for shots taken from a few metres back, but get in close for a full face portrait and you will distort the features, usually the nose. I discovered this at my cost when I bought the Pentax SMC FA 50mm 1.4 which has virtually zero distortion. The problem isn't distortion however, it's perspective and it will happen with any lens.
You can see the effect if you close one eye and point an index finger directly at it from arms length, you will see the tip of the finger but also the sides of it going towards the base as the finger is tapered. If you move the finger closer to your eye you will notice that you can no longer see the sides, just the tip. This is the same distortion effect you will get when sticking a lens really close in on a model.
I still use my 50mm lens for portraits but I have to remember to not get too close so it is limited in what I can do. You really need a 85mm (on full frame sensor) to get the best portraits and a lot of the top pros will use this sort of focal lens for close in shots. Clive Booth is one example, check out the link below.
I am in no way saying that a 50mm lens cannot produce fantastic portraits because it can, but if you are about to invest in a lens specifically for portraits then you may be well advised to divert the cash to something a little less wide angle. To reiterate, the 50mm is not that far from being ideal when on a crop sensor as it equates to 75mm which is only 10mm from the optimum but that small difference will make close up shots distorted.
I hope this info is of help to people as I wish I had been told this before I invested in incorrect equipment
http://www.professionalphotographer...f-a-Pro/Dispatches-Working-with-hair-stylists
I will post some examples of the perspective distortion if required.
You can see the effect if you close one eye and point an index finger directly at it from arms length, you will see the tip of the finger but also the sides of it going towards the base as the finger is tapered. If you move the finger closer to your eye you will notice that you can no longer see the sides, just the tip. This is the same distortion effect you will get when sticking a lens really close in on a model.
I still use my 50mm lens for portraits but I have to remember to not get too close so it is limited in what I can do. You really need a 85mm (on full frame sensor) to get the best portraits and a lot of the top pros will use this sort of focal lens for close in shots. Clive Booth is one example, check out the link below.
I am in no way saying that a 50mm lens cannot produce fantastic portraits because it can, but if you are about to invest in a lens specifically for portraits then you may be well advised to divert the cash to something a little less wide angle. To reiterate, the 50mm is not that far from being ideal when on a crop sensor as it equates to 75mm which is only 10mm from the optimum but that small difference will make close up shots distorted.
I hope this info is of help to people as I wish I had been told this before I invested in incorrect equipment
http://www.professionalphotographer...f-a-Pro/Dispatches-Working-with-hair-stylists
I will post some examples of the perspective distortion if required.
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and for another, the winking emoticon (