Not ever having used a Canon 400, regardless of lens - your losing performance with an extender.
The Sigma/Tamron Lenses are a no brainer considering the price of the manufacturer's offerings. (Pro's excluded).
Have a look at some of the pictures on this thread :-...
I use PortraitPro Studio by Anthropics Technology. Here's recent pic of my girlfriend in the garden.
Took about 2 minutes to process this. You can download a free trial. I love it for quick enhancements.
p.s. She wanted the make up slapped on lol
Looking for some advice as to whether this is a decent telescope for a relative beginner to astrophotography.
Could do with some advice on attaching a DSLR etc.
If this one is no good, can you suggest something better up to £350.
Amazon Link to above telescope...
That's a good shout Bob. Seen a few in the forum for sale and been tempted at times. Have these focal lengths covered with quality Nikon lenses. Be useful when my girlfriend helps me out occasionally as second shooter on another body (D7200 or D700).
Does he use Lightroom ?.
Easy enough to use the filter.
Soon tell him what his most used focal length is.
p.s. I have that lens also and would not be getting rid. Excellent for so many different purposes.
I had a very cooperative heron down by the local river.
Managed to get riverside, around 20 shots of it quite close. D750-Sigma 150-600mm.
You can see them all here :-