Converter? (1 Viewer)

shropshirelad63

Well-known member

• May 5, 2015

• #1

I have Canon eos slr camera and a 300mm lens (sigma) is there any way i can increase the focal length? i,m a bit dissapointed with 300mm especially trying to photagraph birds at distance.

 

shropshirelad63

Well-known member

• May 7, 2015

• #2

ok looks like buying a magazine then:eek!:

 

stevo

Well-known member

• May 7, 2015

• #3

What's the aperture number when it's wide open on the sigma lens?this will largely determine whether or not a converter can be used.

Steve.

 

shropshirelad63

Well-known member

• May 9, 2015

• #4

5.6

 

D

Dave Williams

Well-known member

• May 9, 2015

• #5

shropshirelad63 said:

5.6

Click to expand...

Now it depends on which Canon body you have. If you stick a 1.4 TC on that lens it becomes an f8 and will only auto focus with a Canon 1D series, 5D3 or 7D2.
You can still use manual focus though which is OK for static subjects.

Most answers are readily available if you "google" the questions too.

 

the black fox

Well-known member

• May 9, 2015

• #6

don't think that sigma do a 300mm f5.6 prime so i will assume this lens is actually a zoom that goes out to 300mm in which case ANY t.c is a big no no .
there are plenty of sigma lenses that exceed that length and will give better i.q i.e 120-400 ,150-500,50-500 all available second hand or the brand new 150-600 series .