Playing with 100-400 L and extenders (8 pics)

[RTMiller]

Just playing around in the backyard with the 100-400 L with the 1.4x and 2.0x extenders. Through the neighbors yard, across the road, up the hill, in between the two apartment buildings, there is a STOP sign...

Pic 1 - 28mm
http://mywebpages.comcast.net/rtoddmiller/picreview/pic1-28mm.jpg

Pic 2 - 100mm
http://mywebpages.comcast.net/rtoddmiller/picreview/pic2-100mm.jpg

Pic 3 - 200mm
http://mywebpages.comcast.net/rtoddmiller/picreview/pic3-200mm.jpg

Pic 4 - 300mm
http://mywebpages.comcast.net/rtoddmiller/picreview/pic4-300mm.jpg

Pic 5 - 400mm
http://mywebpages.comcast.net/rtoddmiller/picreview/pic5-400mm.jpg

Pic 6 - 560mm (400 x 1.4)
http://mywebpages.comcast.net/rtoddmiller/picreview/pic6-560mm-400x1.4.jpg

Pic 7 - 800mm (400 x 2.0)
http://mywebpages.comcast.net/rtoddmiller/picreview/pic7-800mm-400x2.0.jpg

Pic 8 - 1120mm (400 x 1.4 x 2.0)
http://mywebpages.comcast.net/rtoddmiller/picreview/pic8-1120mm-400x1.4x2.0.jpg

[Cadwell]

Too much effort; all that fiddling about with extenders. You're better off buying an Canon EF 1200 f/5.6L.

[mtnbiker1096]

Nice test. I like it.

[transcend]

excellent! I was looking for the effective distance between 50-200 (as in distance wise in the real world, not lense wise).

Pretty effective test!

[prime80]

The clarity at 1120 is amazing!

[dispatchermike21]

What Camera are you using?

[tim]

Cool test :)

[RTMiller]

What Camera are you using?
Nikon D70.
Settle down, just kidding, 20D.

[RTMiller]

Too much effort; all that fiddling about with extenders. You're better off buying an Canon EF 1200 f/5.6L.
Your're right! That was alot of work! How much for one of tho$e 1200's?

[who me?]

Nice test, thanks for the work. I am suprised in the clarity of the stacked converters. What were your f stops for each of those? Just curious.

[dispatchermike21]

Very nice I am getting my 20D this weekend!!!!!!!!!!!

[robertwgross]

Amazing.

I had no idea that you could get a 28mm shot out of a 100-400mm lens.

---Bob Gross---

[Redbird_xo]

Amazing.

I had no idea that you could get a 28mm shot out of a 100-400mm lens.

---Bob Gross---

A right dosage of sarcasm sometimes will do magic. ;)

[HKFEVER]

Please post a 100% corp of 400 + 1.4, 400 + 2.0 and 400 +1.4 + 2.0.

[R.T.]

Thanks! I for one really appreciate your time and effort. I'm thinking about getting this lens, so that was a big help for me. I didn't know you could stack the converters together like that. And for what looks like a pretty cloudy day out, your pics came out great. Thanks again!

[RTMiller]

What were your f stops for each of those? The EXIF info is gone because I moved the files improperly from one folder to another. All pictures were taken in Av mode and the f-stop was unchanged between pictures. I am guessing that I used f11.


Amazing. I had no idea that you could get a 28mm shot out of a 100-400mm lens.You're just not squeezing hard enough.;)


Please post a 100% corp of 400 + 1.4, 400 + 2.0 and 400 +1.4 + 2.0.Tonight I will post some links to the actual pictures (I can't do it from work).

[RTMiller]

Links to the actual pictures...

400mm http://mywebpages.comcast.net/rtoddmiller/picreview/pic5400mm.jpg
560mm (400x1.4) http://mywebpages.comcast.net/rtoddmiller/picreview/pic6560mm.jpg
800mm (400x2.0) http://mywebpages.comcast.net/rtoddmiller/picreview/pic7800mm.jpg (http://mywebpages.comcast.net/rtoddmiller/picreview/pic7800mm.jpg)
1120mm (400x1.4x2.0) http://mywebpages.comcast.net/rtoddmiller/picreview/pic81120mm.jpg

[Todd Jacobsen]

Converters do not provide data in EXIF anyway so you need to estimate the f-stop based off of your native lens (100-400) + the expected converter loss.

[arn]

Just playing around ... with the 1.4x and 2.0x extenders.
Did you use Canon extenders or what? How was the (manual) focusing? Did you use a tripod? What kind of shutter speeds did you have?

I know, I know, it's a lot of questions... But I'd be happy if you care to shed some light :)

[RTMiller]

Did you use Canon extenders or what? How was the (manual) focusing? Did you use a tripod? What kind of shutter speeds did you have?

Both extenders were Canon. The manual focusing was a little bit of a challenge because I don't practice it that often. I used a tripod (turned off the IS) and would guess my shutter speeds were around 1/60 (I'm guessing because I lost the EXIF data). Hand-holding the camera while zoomed in at 1120mm was tough for me. I suppose if you sat down and used your knees or leaned up against a tree you might have some success. I will have to try that next.

[claytoce]

Am I missing something or shouldn't your calculations be including the 1.6x factor for the 20D? That would make the last shot 1792mm?

[dhbailey]

Which extender did you use, the Canon or the Tamron? The Canon only works with certain specific lenses, while it appears that the Tamron will work with any EF lens. This is important for me because the lenses I own aren't on the Canon compatibility list.

Great comparison shots! Thanks for sharing them!

[SamerJ]

thanks for sharing..interesting post and alot of effort, cool experiment good results