Home › Photo Forum

Doublers?

Sat, 2008-02-16 10:10 — tavares

Thinking of getting 2.x doubler for the Canon. I know I am gonna lose a full f-stop.

My 100-400 lens that is f4-5.6 will get "slower".

I wonder if it will still let me get those race track shots..

 

Any experiences Yea or Nay with doublers?

 

Thanks 


‹ There is always a story Buying cameras and other digital electronics from online vendors ›
Sun, 2008-02-17 07:26 — tavares

2(!) full f-stops

Looks like I mis-remembered the specs. I would lose 2 full f-stops going with a 2x extender.

That is worse than I thought. I will have to look at the EXIF data

on some of my racing photos to see what the aperature was on those.

 

Not sure if I can live with a f9 aperature on the 100-400.

I would also lose auto-focus, which is annoying but not

a deal breaker in and of itself. Combined with the aperature loss it may be a deal breaker.... 


Sun, 2008-02-17 16:27 — islemann

I'd skip the doubler

Vqarous broadcast cameras that I've been assigned have been equipped with extenders (aka doublers). None of them worked worth a damn. Too much loss of aperature and in many cases the quality of the glass was sub-standard.

These were Fujinon lenses. I have no experience with doublers on Canon or Nikon glass.

 

Y2XMV

Michael 


Tue, 2008-02-19 12:44 — keith

I've always thought of

I've always thought of teleconverters as being more useful for macro shots where you want shallower depth of field anyway. I tried using one at a baseball game (~20 years ago) and felt it was fairly worthless.