Comments on: Teleconverters in photography — Photography podcast #31

By: Mark Compton

Mark Compton — Wed, 24 Sep 2008 10:19:43 +0000

Just started listening to the podcast, started at the beginning and making my way through them, taken 2 days so far heh.. Loving the podcast, great information and it’s fuelling my love for photography
In quick response to Mike above, I think you were thinking of extension tubes, they don’t have glass in them, but they are generally used for macro photography to increase the magnification by allowing you to move closer to the subject. I got half way through this podcast and realised I was thinking about extension tubes initially

Cheers for all the info, and I’ll keep plodding through the casts, hopefully I’ll be up to date in a day or two heh.

By: Mike

Mike — Thu, 11 Sep 2008 22:51:16 +0000

I stand corrected.
I didn’t realize they did indeed have glass in them.

Never mind.. .

By: Mike

Mike — Thu, 11 Sep 2008 22:46:40 +0000

Hi, I just heard this episode today, and wanted to point out that you kept referring to these as “lenses”.
And even made a statement about the “glass” in it at one point in the podcast.

I would really hope you realize that teleconverters are just empty tubes. They are not a lens!

Thanks

By: Multiple exposure in photography - Photo podcast #32

Multiple exposure in photography - Photo podcast #32 — Tue, 27 Nov 2007 21:48:32 +0000

[…] Thanks as always for comments by‚Rob, Al, DaronJ and Cindy on our last podcast on photography teleconverters . Thanks very much to Samirah and Tegan, members of our photography forum‚for their suggestions on future podcasts. We LOVE comments and suggestions so please send more. You can download this photography podcast directly by clicking first link or listen to it almost immediately with the embedded player below the photographs. […]

By: Cindy

Cindy — Sun, 18 Nov 2007 22:50:49 +0000

Thanks Marko. Sorry I didn’t give you enough info on the camera I have or what I intended to use the teleconverter for. I’ve just upgraded to a Canon XTi and I love doing nature and landscape pictures. Thankfully you understood my question, and thanks for your insite on teleconverter lens. With a 1.4x11 I beleive I can finally get a good clear picture of the hawk in his nest, with the lens I have. Thanks again Cindy

By: admin

admin — Wed, 07 Nov 2007 20:07:07 +0000

Hey Daronj,

Thx for the compliment!
DOH! I neglected to put that in the podcast — EXCELLENT QUESTION.

Your principal is correct and your math is correct.

Just for learning purposes I would suggest it’s clearer to say 200 x 1.4 x 1.6 where 1.4 is the teleconverter factor and 1.6 is the crop factor for digital SLR cameras with a crop factor. same diff though, and THANKS for pointing that out. Best! Marko

By: daronj

daronj — Wed, 07 Nov 2007 19:33:29 +0000

Hi Marko,

Great podcast on teleconverters. I have been contemplating these recently for nature photography. I have a question. Doesn’t the DLSR’s image sensor’s crop factor also add the the effective length of the lens? I have a Canon Rebel XT with a 1.6 crop factor. If a use a 200mm lens and a 1.4x convertor, do I get 200 x 1.6 x 1.4 for an effective length of
448 mm relative to 35mm camera?

Thanks,
Daron

Oh, I love the photo of the week. Great find.

By: admin

admin — Mon, 05 Nov 2007 12:42:17 +0000

Thanks for those comments Rob and Al. You are right Rob…I used wicked too often when there are so many other synonyms out there.
Thx!

marko

By: Rob

Rob — Mon, 05 Nov 2007 01:24:07 +0000

Thanks for the clear and deliberate explanation on how to use a teleconverter. I have been mulling about this decision for some time now and I think your podcast will finally be the straw that breaks the camel’s back — in favour of adding one to my kit.

If I could only make one suggestion, for future podcasts obviously, it would be a linguistic one: try not to overuse key words such as “wicked” since once repeated, it loses its original distinguishing value — in my humble opinion.

By: Al

Al — Sun, 04 Nov 2007 21:57:18 +0000

Thanks for this podcast! Being new to the art, I’m still exploring the tools and equipment, any equipment-related topics and tips would be great!