Toni did not start the discussion if (or not) the 5DMk1 is (or is not)
a camera he should buy. Instead, he mentioned as a fact, that he
is getting one. His question was regarding lenses.
The fact, that some forum users do, and others don't understand his
choice of camera is not really helpful in this context. Also, the relevance
that some put on a certain sensorformat, and the irrelevance this has
for others, will also not answer the original question.
Many thanks all, as I told you I was already using 5D and happy with it, that's why I the decision of buying it was quite easy, I just said to my friend if you don't mind, I won't give you back the 5D, I am keeping it for good, name your price.
This weekend I went shooting using 5D plus 50mm f1.4 and 100mm macro and didn't feel I needed anything more so I am quite happy with it, what I need is an ultrawide lens for landscape and architecture, my widest lens now is Canon EFs 17-55f2.8 , I am extremely happy with it as walkaround lens however I often need wider. It doesn't matter if the lens is full frame or APS-C but from your experience which one would be the best ?
on APS-C no doubt the best option is Canon EFs 10-18, on full frame I think there are plenty of good options what do you recommend ? I get EFs 10-18 or another one to use on 5D ? which one
The 10-18 is said to be a great choice but I've never used one.
As an owner of the 5D classic/Mk 1/whatever, I can recommend the Sigma 15-30 EX. Mine is sharp from wide open and feels great. The contrast is really nice two, which helps to forget the impossibility to use filters.
The biggest downside of the Sigma is the work against the sun, as it flares pretty hefty but on the other hand, it's 15mm!!