you'll get better pics with a 50mm it forces you closer, telephoto candids never have the same impact personally
some great advice bellow from Timothy Allen who shot for human planet for the bbc:
1. When shooting people, stop using your long lens so much
After many years of perusing the portfolios of aspiring photographers, I can safely say that the single most common factor I see leading disillusioned travel photographers to accumulate huge collections of mediocre travel images is an unhealthy dependence upon using long lenses for shooting pictures of people. I hate to say it folks, but for most people the inconvenient truth about this addiction is the fact that it is born out of one thing and one thing only
fear.
I dont think that its any coincidence that the English language has evolved the use of the verb take to describe the process of taking a picture. For me, this etymological hint serves as a reminder to us that when we photograph someone, maybe we shouldnt overlook the fact that we are in fact taking something from them and that in just about every other aspects of our lives, when we take something from someone we normally ask first and say thank you afterwards.
Why should it be any different in photography? Asking and thanking involves connecting with people and long lenses make that a very easy thing to avoid. They tend to put a large distance, both physically and emotionally between you and the people you are photographing which does a fine job of insulating you from any potential intimate interaction.
Ive seen it many times before. This lack of intimacy will show in your images.
Losing your big gun will mean that you will have to start connecting with your subjects again. I know all too well how nerve racking that process can be. Believe me when I say that even after all these years, I still get butterflies in my stomach when I have to approach a stranger in order to photograph them. Thats a fact of life for me but as far as Im concerned a healthy and invigorating life involves addressing a lot of uncomfortable feelings like these, so if you recognize an aspect of yourself in what Im saying then you will have to feel the fear and do it anyway if you want the power of intimacy to resonate within your images.
Dont get me wrong. There is a place in this world for long lenses
I use a 200mm f2.8 and 400mm f5.6 but I would say that when Im shooting people, I generally tend to use them in order to condense the background contents of my frame, often when I am photographing somebody in their environment. However, using a long lens to pick off people in a crowd like a sniper shooting his victims is certainly something that I dont condone if you want to make your images stand out from the rest of the drones of travel photographers who are regularly shooting unexceptional head shots and portraiture on their long lenses.
Using a long lens to condense the background contents of an image (400mm)
What about the fact that when you use a long lens you get more candid shots of people because they dont know youre taking their picture?
Candid?.. Yes, possibly.. Dull? .. most definitely. Ive often heard this argument used to justify hiding behind a camera, fostering laziness and producing bland, unengaging pictures IMO. Why not try and get a candid shot with a short lens?
now thats a real skill.
Try this technique next time you decide to approach someone to take his or her picture. Instead of snapping them and bolting, try asking them if they wouldnt mind if you accompanied them for a little while whilst you take some photos. If they say no, then thank them and move on. However, if they agree then in my experience before not too long they will have forgotten you are there, and your resulting images will have a far more intimate feel to them. This technique works particularly well when you are visiting people in their homes. Just make sure you can give the situation your full time and attention, which also means forgetting about your cameras . The quality of your images will be a direct reflection of the degree to which you engaged with both your subject and their environment
and in my experience, the biggest part of that is usually what happens when your cameras are packed away in their bag.