Possibility of stacking Canon Teleconverter: Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3. Question: is it possible to add (stack) additionally a 1.4 Mark 3...

Medved Loc: Los Angeles

Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3.

Question: is it possible to add (stack) additionally a 1.4 Mark 3 Teleconverter to the above set up?

Understand this will narrow aperture, but this will be day light shot. Due to very infrequent use, I do not want to buy another telephoto.

Will appreciate advice. Thanks

David C.

The photo grain will increase along with edge distortion but it would be possible. I tried something simular once with a Topcon RE camera, using a 200mm f5.6 lens coupled with 2 Topcor 2X f4.5 teleconverters. This convinced me to purchase both the 500mm f5.6 and 300mm f2.8 Topcor R series lenses at later dates. I was traveling to Japan often in the 70's and the conversion rates were in my favor for the purchases. This was not the same experience with purchases in Germany, but I still enjoy the German Exakta cameras as much as the Japanese Topcon offerings, in my collection. They share the same lens mount. David C.

CHG_CANON Loc: the Windy City

Even if the image quality was acceptable, the configuration would not autofocus. What situation do you imagine using such as a set-up?

You might 'watch' this recent thread that is much the same question: https://www.uglyhedgehog.com/t-688079-1.html

DRM Loc: NC

Medved wrote:

Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3.

Question: is it possible to add (stack) additionally a 1.4 Mark 3 Teleconverter to the above set up?

Understand this will narrow aperture, but this will be day light shot. Due to very infrequent use, I do not want to buy another telephoto.

Will appreciate advice. Thanks

Definitely possible, with primary caveats being loss of autofocus and requirement of absolutely impeccable photographic technique.

Check an October 2018 article by George Lepp in Outdoor Photographer titled "Keeping Your Distance and Claiming Your Space." Sorry I can't provide a link, but a search of Lepp and the article title quickly brings it up.

unlucky2 Loc: Hemet Ca.

Medved wrote:

Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3.

Question: is it possible to add (stack) additionally a 1.4 Mark 3 Teleconverter to the above set up?

Understand this will narrow aperture, but this will be day light shot. Due to very infrequent use, I do not want to buy another telephoto.

Will appreciate advice. Thanks

To stack "TC's" you need a extension tube, they will not fit together without one. I use the EF12, it connects the electrical circuits so auto focus can work (if F8 or less). Extension tubes are great candidates for used purchase as they do not contain glass. I don't remember for sure, I think I got mine from KEH for less than $50.

TriX Loc: Raleigh, NC

Medved wrote:

Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3.

Question: is it possible to add (stack) additionally a 1.4 Mark 3 Teleconverter to the above set up?

Understand this will narrow aperture, but this will be day light shot. Due to very infrequent use, I do not want to buy another telephoto.

Will appreciate advice. Thanks

I suspect you’ll find the quality unacceptable. Instead, I’d suggest selling the 2X, add the proceeds to what you would have spent for the 1.4, and buy a decent tele - the cost will be similar and the results will be much better

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

Medved wrote:

Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3.

Question: is it possible to add (stack) additionally a 1.4 Mark 3 Teleconverter to the above set up?

Understand this will narrow aperture, but this will be day light shot. Due to very infrequent use, I do not want to buy another telephoto.

Will appreciate advice. Thanks

Not worth the trouble. As has been suggested sell the 2X, and use the budget you have for a 1.4X and extension tube, add a few $$ and get a 150-600 lens - it will give you better image quality and at least it will autofocus. And being a zoom, you may find yourself using it for shorter focal length applications. With stacked TCs you are looking at losing 35% or more resolution and contrast, and add vignetting and lots of CA in the process. You'd be spending a lot of $$$ to get to mediocre results or less - at best.

wdross Loc: Castle Rock, Colorado

Medved wrote:

Using Canon 5d Mark 4, 70 to 200 zoom - 2.8 with Teleconverter 2x Mark 3.

Question: is it possible to add (stack) additionally a 1.4 Mark 3 Teleconverter to the above set up?

Understand this will narrow aperture, but this will be day light shot. Due to very infrequent use, I do not want to buy another telephoto.

Will appreciate advice. Thanks

I know that this was talked about being done in an article in Outdoor Photographer. When the professional photographer did it, he tried it in two different orders (1.4X + 2X versus 2X + 1.4X) and one worked better than the other (differences in the design characteristics of the teleconverters).

wdross Loc: Castle Rock, Colorado

Gene51 wrote:

Not worth the trouble. As has been suggested sell ... (show quote)

Your suggestion may be the best. As I recall, the photographer in the Outdoor Photographer article indicated that the quality of such really did not meet normal professional standards .

hcmcdole

DRM wrote:

Definitely possible, with primary caveats being loss of autofocus and requirement of absolutely impeccable photographic technique.

Check an October 2018 article by George Lepp in Outdoor Photographer titled "Keeping Your Distance and Claiming Your Space." Sorry I can't provide a link, but a search of Lepp and the article title quickly brings it up.

I remember that article. It was inspiring to see what can be accomplished by a pro. I couldn't remember the title or date. Here is the link to that article so your mention of the date really helped my search.

https://www.outdoorphotographer.com/pro-perspectives/george-lepp/keeping-your-distance-claiming-your-space/