Herky
Member
I just got a Tamron 150X600 mm lens for my Canon t4i & I love it. If I use a 2X converter I will need to use manual focus, & use a tripod. Any other thoughts or advice for this beginner?
-
Welcome to the new forums! Please read this first. For known issues we are working to resolve, click here.
2X converter
- Thread starter Herky
- Start date
jbcohen
Senior Member
What's a 2X converter?
a special lens that fits between your original lens and the camera to boost the magnification by 2. As you can imagine it comes with a bunch of comprises and negative quality effects.
A 2x converter will also mean you'll need more light, if your min aperture is 5.6 with a converter it will be 11, I don't have one now but had one 40 years ago, I seem to remember some vigneting and overall not very good quality, but was ok, better than nothing certainly.
Have fun.
casperskitty
Senior Member
I too have that lens.
Sigma says:
"When SIGMA TELE CONVERTER TC-1401 is attached to cameras that are compatible with AF at F8, it is possible to shoot with AF. In cases where contrast or brightness level of the shooting object is low, it may not focus properly."
Does your t4i AF w/ an f/8 lens? I think it requires at least f/5.6?
How will you manually AF? Only LV will work well. The oVF will be so dark, you will not see diddly. Can you see the rear LCD in daylight?
As you can see, even a TC-1.4 has issues. It will also degrade the optics! I would not even attempt a TC-2.0.
stevejenn
Senior Member
Don't do it. You will not like the results. I have the 150-600 Tamron and use it often. I also have the Tamron 1.4TC and would never use it with that lens. Even the 1.4TC degrades the image more than I find acceptable. I bought the TC, (non-reporting), years ago to use with my Canon 100-400. Since upgrading to the newer Camera bodies, I never use it any longer.
Steve J
crashpc
Veteran Member
You don´t need to put many threads in different forums.
Anyway, here is something interesting (and even funny to me).
Teleconverters can be used not only for reach as primary purpose. But of course, everything comes with its own set of compromises.
Last edited:
Old Greenlander
Senior Member
Herky
Don't get greedy
You have a nice combo, adding a 2x converter will simply ruin your pictures
Don't get greedy
You have a nice combo, adding a 2x converter will simply ruin your pictures
crashpc
Veteran Member
Expensive TCs are not here to ruin images. If you use them with good and suitable glass, you'll get more of the image. "More pixels on bird" as many say....
Last edited:
Old Greenlander
Senior Member
Crashpc
if you catch the bird with 2x extender
I do BIF, such a picture would be difficult with converter
--
Old Greenlander
"I show the world the way I see it"
35 years of photography and still learning
if you catch the bird with 2x extender
I do BIF, such a picture would be difficult with converter
--
Old Greenlander
"I show the world the way I see it"
35 years of photography and still learning
crashpc
Veteran Member
Nah, I forgot to state that it is meant for static photography, with bird on a branch or so... One would not use 55-250mm IS STM and low end body, expecting awesome results anyway I guess. TC will make it only slightly less possible than it would be normally with setup like that.
Keyboard shortcuts
- f
- Forum