1.4 Teleconverter (Page 2): But they aren't f2.8 or faster primes or f2.8 zooms.

romanticf16 Loc: Commerce Twp, MI

sinderone wrote:

Let me clarify that my lenses are all Nikon.

But they aren't f2.8 or faster primes or f2.8 zooms.

JimH123 Loc: Morgan Hill, CA

MtnMan wrote:

You failed to provide the link.

Kenko's table and supporting comments suggest the 55-300 should work fine with the 1.4. I can let you know in a few weeks as I have a replacement for my 55-300 arriving today and am hoping for the Kenko 1.4 Pro 300 for my birthday next week. The hint is in.

Higher than 1.4 won't autofocus and will degrade image more.

I also plan to use the 1.4 with my 200-500 on occasion, maybe on my D800.

I see I did fail to add the link. Sorry about that:

https://www.dpreview.com/forums/thread/3489713

Davet Loc: Fort Myers, Florida

So let me get this right.... If I have a 70-200 and use a 1.4 TC. How much does it magnify on a FX camera?
If I use my d300 and the same how much does it magnify?

mwsilvers Loc: Central New Jersey

Davet wrote:

So let me get this right.... If I have a 70-200 and use a 1.4 TC. How much does it magnify on a FX camera?
If I use my d300 and the same how much does it magnify?

It magnifies the same 1.4x no matter what camera you use it on. However on a crop frame camera like your D300 you would multiply the resulting focal range by the 1.5 crop factor to get the 35mm equivalent angle of view.

A Nikon FX body with 70-200 lens and a 1.4x TC will give you 98-280mm
A D300 or any Nikon APS-C camera with 70-200 lens and a 1.4x TC will give you a 147-420mm equivalent angle angle of view once you apply the crop factor.

amfoto1 Loc: San Jose, Calif. USA

jeep_daddy wrote:

If money is no object...

Reread the original post... It says "money is NOT no object"... double negative, which strongly suggests that cost IS an important consideration.

romanticf16 Loc: Commerce Twp, MI

Davet wrote:

So let me get this right.... If I have a 70-200 and use a 1.4 TC. How much does it magnify on a FX camera?
If I use my d300 and the same how much does it magnify?

It magnifies the same amount regardless if mounted on a DX or FX body- HOWEVER, the DX sensor is smaller and will only capture the center part of
the image comming through the lens to the sensor. That is why it is called a "crop sensor camera". This crop gives the illusion of the image being closer, when it is identical in size, but cropped by the sensor. Why people say a DX camera magnifies the image is beyond me- it is completely false.

mwsilvers Loc: Central New Jersey

amfoto1 wrote:

Reread the original post... It says "money is NOT no object"... double negative, which strongly suggests that cost IS an important consideration.

I have too often found when people say that cost is no object, they have a preconceived and erroneous impression of just how high the costs can be. I especially recall a first time DSLR buyer, a few years back, making that statement on another site when he looking for a pro/semi pro camera. Then it came light that his budget was $1000 which he "thought" would be more than what was needed. The real kicker came next. After cameras in his budget were suggested he asked what lenses (plural) came WITH the camera. The bottom line, for practically everyone, cost IS an object.

jerryc41 Loc: Catskill Mts of NY

billnikon wrote:

My father gave me two pointers in photography, he said, "son, stay away from tele-converters...

I bet he meant one of those screw-on extensions. I doubt they had the type of teleconverters we have now.

jackpi Loc: Southwest Ohio

sinderone wrote:

I am going on a trip to Vietnam, Cambodia and Thailand followed by a trip to Alaska. I take my D7100 with an 18-200 on it, a 35mm 1.8 and for the Alaska trip a 55-300. Is it worth buying a 1.4 Teleconverter and will it work with any or all of these lenses? If so, what model would you buy? Money is NOT no object.

On a zoom lens, a 1.4x TC will reduce sharpness by 15% to 25% and you lose one stop on your widest aperture (f/5.6 --> f/8). And your telephoto lens AF may be limited to a single focus point, if it works at all. I doubt you will need anything longer than 200mm in Cambodia and Thailand. In Alaska, your two zoom lenses should be fine, even for bald eagles. If you shoot anything that needs a longer focal length, you will need a tripod and a stable platform to shoot from.

Reinaldokool Loc: San Rafael, CA

sinderone wrote:

I am going on a trip to Vietnam, Cambodia and Thailand followed by a trip to Alaska. I take my D7100 with an 18-200 on it, a 35mm 1.8 and for the Alaska trip a 55-300. Is it worth buying a 1.4 Teleconverter and will it work with any or all of these lenses? If so, what model would you buy? Money is NOT no object.

My grandson left SF a few days ago on a similar trip for 3-6 months. Starting in Japan with a couple weeks hanging with my Japanese niece, but then off to Vietnam and other SE Asia. He has a D7100 with an 18-200 and I don't know what else. Couldn't help but be caught by the similarities. But I don't think he has plans for Alaska though.

Steve Perry Loc: Sylvania, Ohio

Take the money you want to spend on the TC and put it towards a 200-500 (or just rent the 200-500 for the trip). I think you'll be much happier.

sinderone

Correct.

sinderone

Thank you to all for your advise. Some very helpful ideas.

romanticf16 Loc: Commerce Twp, MI

If you have a good camera store nearby take your camera and 55-300 lens in and ask to try a Kenko Pro 1.4X TC on it. Most stores will let you shoott test frames before you purchase gear.

mwsilvers Loc: Central New Jersey

jackpi wrote:

On a zoom lens, a 1.4x TC will reduce sharpness by 15% to 25% and you lose one stop on your widest aperture (f/5.6 --> f/8). And your telephoto lens AF may be limited to a single focus point, if it works at all. I doubt you will need anything longer than 200mm in Cambodia and Thailand. In Alaska, your two zoom lenses should be fine, even for bald eagles. If you shoot anything that needs a longer focal length, you will need a tripod and a stable platform to shoot from.

Not sure what lenses and TCs you are referring to, but with the best TCs from Canon and Nikon, matched with appropriate high quality lenses, the loss in sharpness and contrast ranges from negligible to relatively minor. The absolutely stellar Canon 70-200 f/2.8 L IS USM II, for $1950, partnered with the Canon 1.4x Extender III for $429 makes for a fantastic and super sharp f/4 combo when a little more reach is needed.