This is pretty cool – the two top 50mm lenses from Nikon and Canon. You will probably notice the size difference between the two lenses. Canon’s 50mm lens has a über wide aperture of f/1.2 and Nikon is limited to f/1.4.

People will often complain that professional lenses weigh so much – well that is due to physics and if the lens is made out of metal, alloy, or plastic. More and more Nikon lenses are made from plastic – at least on the outside.

Will Nikon ever make an f/1.2 50mm lens? They already do! However, it is manual focus. I have heard from someone who heard from someone who works on Nikon lenses that the Nikon mount cannot support an f/1.2 lens if that lens has a focusing motor onboard. I don’t know if that is true. However, Nikon’s lack of f/1.2 is one reason I am adopting some Canon gear.

Nikon f/1.4 vs. Canon f/1.2

And aperture really is my deciding factor when buying a lens. If I can afford the wider aperture (lower numbers) then I will buy it. Otherwise I will upgrade when I can. The Canon lens is so much larger because the glass has to be so much wider. It is huge! But it helps the camera shoot in the dark and my favorite feature is the control over the depth of field.

Nikon f/1.4 vs. Canon f/1.2

Nikon f/1.4 vs. Canon f/1.2

I think most photographers have a favorite lens – and that they keep that lens on their camera almost all the time. I would say that I am a fan of my Canon 50mm f/1.2 (although that lens is my only Canon lens right now). It is on my camera 100% of the time. For my Nikons I find that I use my Nikkor 50mm f/1.4 80% of the time and only change it when there is a need for a different lens.

So I decided to ask photographers on Twitter and Facebook what their favorite lenses were and here are some of the responses:

• favorite lens is the Canon 24-70 f2.8L USM. It is pretty much glued to my camera body.
• I love my 70-200 2.8 IS.. I love the depth of field I can get with it &I love the crisp photos it creates. I use it 50%
• My 85 1.8 is my favorite, but it’s my least used since it’s not practical for my usual applications. 28-75 2.8 is most used
• Canon 28 2.8 (I’m on a crop sensor) is on my camera 60% of the time.
• I use my 50mm 1.8 the most. Want to replace it soon though, it’s getting old..
• Great question. My favorite lens is my 35/2 Leica, but I don’t use it the most. The lens that gets used the most is the 24-70 on the D3.
• 24-70 2.8 %95 of the time

Recently I received an email asking which lens to buy – and they were comparing a Canon 24-70mm f/2.8 and the Canon 24-105mm f/4 IS. They like the functionality of the IS (image stabilization) but they also like the f/2.8 of the other lens. (hey Nikon and Canon – when are you going to build a lens that is 24-70mm with f/2.8 AND VR or IS?)

My recommendation was to buy BOTH! Actually I am joking. I recommended he try them out first and then decide from his experience which lens he could buy. I recommended he check out http://borrowlenses.com. For about $100 he could rent both lenses for a week and see which lens he liked more.

There are so many types of lenses out there – and lenses that meet the different needs and budgets for each photographer. And I would highly recommend renting or borrowing a lens to try it out before you buy. There is nothing worse than buying a lens and then never using it. I have one or two that just stay in my camera bag.

Me? I will go for aperture over VR or IS. It isn’t just photographing in low light – it is creating the magic blur behind the subject and you really can only do that with a wide open aperture.

Maybe I should write my next post on which lenses you should consider…