You'll need some more info for people to help you.
1. Why are you thinking of moving to Nikon?
2. If you stayed with Canon, why do you want to upgrade the body (as opposed to the lenses, or at all?)
3. What type of photography do you enjoy most
4. Do you have a budget in mind?
Al
more infoYou'll need some more info for people to help you.
1. Why are you thinking of moving to Nikon?
2. If you stayed with Canon, why do you want to upgrade the body (as opposed to the lenses, or at all?)
3. What type of photography do you enjoy most
4. Do you have a budget in mind?
Al
As above really, why do you feel you want to / need to change ?Think I fancy a change. All I do is landscape and portrait pictures. I need camera Good in low lights aswel. If stay canon might get a 24-105 l lens for portraits as it has is built in and the flexibility of range. I guess ** going say my 40d is good enough?
Andy i think you'd be better going to the 7d if you really want to upgrade.
I made the move and although Nikon is nice theres just something missing.
+1One of the reasons I moved from Nikon to Canon was the lens prices and variety, mainly primes. I like the colour of the pictures from my Canon straight from the body too. My Nikon used to have a warm/pale yellow tinge to the pictures which I tweaked in PP to correct.
For portraits and landscapes I would not consider the 7d over a full frame camera.
The lenses you have are all EF lenses and the improved quality and wider focal lengths of the FF sensor will be much more beneficial to your photography than the 7D which is a small upgrade from your 40D.
Andy i think you'd be better going to the 7d if you really want to upgrade.
I made the move and although Nikon is nice theres just something missing.

I did though about 5d mkii but pricey ............ But though might be wise getting a 24-105 lens first? ?
But are nikon lens any better compare to canon L lenes?
But are nikon lens any better compare to canon L lenes?
No, he like landscapes and portrait work, he need a full frame camera if he was to upgrade the body.
So you have the choice of the Nikon D700 (but then you need to invest in new glass) or Canon 5D (2nd hand) or 5D MKII and perhaps get the 24-70mm f2.8 rather than the 24-105mm f4 (good lens but has flaws at both extremes)
Canon V Nikon they both have their flaws, they both have their plus points before we get into the usual bashing from both sides :bonk:![]()
As for your low light, is this studio work (indoor) or sunset, sun rises, expand please. Perhaps a flash or decent tripod and remote switch (suggestions) would solve your issue? or a faster lens as I wouldn't recommend using a f4 indoors, not quick enough
Low light is indoor at night time I found flash blind the image unless am missing something?