50mm f1.8 with teleconverter

[noneoftheabove]

Any thoughts on using a 50mm f1.8 with a x1.4 or X2 tekeconverter? I was wondering if this is feasible, and could it be a reasonable compact and flexible option on a M50.

I know 85mm and 100mm options exist, but this combination would surely complement the lightweight and compact M?

Or am i being daft?

 

[jadphoto]

Any thoughts on using a 50mm f1.8 with a x1.4 or X2 tekeconverter? I was wondering if this is feasible, and could it be a reasonable compact and flexible option on a M50.

I know 85mm and 100mm options exist, but this combination would surely complement the lightweight and compact M?

Or am i being daft?

Firstly, I don't think the Canon convertors will fit. I don't have the 50mm to confirm this, but I suspect the protruding elements on the Canon tele-extenders would prevent mounting to the lens.

Secondly, tele-extenders/convertors are optically optimized for long focal lengths. A simple but often over-looked fact.

However, it is possible to use after-market extenders, I use the Kenko 1.4 on my EF 70-300L, which won't accept Canon extenders, with very good results.

So, it might be worth trying. Maybe a local store has one you could try on your 50/1.8. If you're happy with the results it matters not what anyone, myself included, says.

JD

 

[Marco Nero]

Any thoughts on using a 50mm f1.8 with a x1.4 or X2 tekeconverter? I was wondering if this is feasible, and could it be a reasonable compact and flexible option on a M50.

The EF 1.4x and EF 2x Extenders won't fit this lens. There's only a select number of EF lenses that these Extenders can mount to. You can easily fit the Extenders to the optional Lens Adapter but unless the lens was designed to fit an extender, it will not physically be able to mount to the lens. Also, 50mm becomes an 85mm (equiv) lens on an APS-C camera and that's not always ideal for indoor work.

I know 85mm and 100mm options exist, but this combination would surely complement the lightweight and compact M?

The EF 135mmL f2L USM lens can accept the Extenders although it works best with the more recent DPAF versions of the EOS M cameras. On non-DPAF EOS M cameras, the extenders slow down AF speed greatly and Chromatic Aberrations become much more pronounced with this lens. Unfortunately, the converters magnify optical flaws. You can also mount the Extenders to a larger EF 100-400mmL f/4.5-5.6L USM (I or II) lens as well and this too works fine on DPAF models of the EOS-M series cameras.

Or am i being daft?

It sounds like a great idea until you discover that only certain lenses can accept Extenders... It would be nice if some lenses (eg the 100mm Macro) did. But they often don't/can't. Most White lenses and only a select few black lenses can accept them. It's possible that a non-Canon version MIGHT fit some EF lenses but the optical quality would be questionable if it did.

 

[Sittatunga]

Any thoughts on using a 50mm f1.8 with a x1.4 or X2 tekeconverter? I was wondering if this is feasible, and could it be a reasonable compact and flexible option on a M50.

I know 85mm and 100mm options exist, but this combination would surely complement the lightweight and compact M?

Or am i being daft?

An EF 50mm f/1.8 with a Kenko 2x teleconverter effectively becomes a 100mm f/3.5, at 5mm longer and, depending on which version of the 50mm, 70-100g lighter than the EF 100mm f/2. I think the 3x better speed, improved depth of field control and image quality makes the 100mm f/2 well worth the extra weight.

I don't know about the 1.4x teleconverter options, apart from them only losing one stop, but the EF 85mm f/1.8 is very slightly smaller and lighter than the EF 100mm f/2.

 

[lumenite]

Any thoughts on using a 50mm f1.8 with a x1.4 or X2 tekeconverter? I was wondering if this is feasible, and could it be a reasonable compact and flexible option on a M50.

I know 85mm and 100mm options exist, but this combination would surely complement the lightweight and compact M?

Or am i being daft?

Firstly, I don't think the Canon convertors will fit. I don't have the 50mm to confirm this, but I suspect the protruding elements on the Canon tele-extenders would prevent mounting to the lens.

The Canon converters cannot be used with 50 1.8, but there are third-party options. I have Kenko Teleplus 1.4x HD DGX, which can be used with EFS as well as with EF.

Secondly, tele-extenders/convertors are optically optimized for long focal lengths. A simple but often over-looked fact.

This is the issue. You can take shots and crop them afterward.

However, it is possible to use after-market extenders, I use the Kenko 1.4 on my EF 70-300L, which won't accept Canon extenders, with very good results.

So, it might be worth trying. Maybe a local store has one you could try on your 50/1.8. If you're happy with the results it matters not what anyone, myself included, says.

JD

Working, but worth? I do not know. I use my Kenko teleconverter with EFS 55-250 at EOS M5. It works smoothly. If you want, I can test my converter with 50 1.4 rather than 50 1.8.

 

[noneoftheabove]

thanks everyyone, i guess its either not possible (due to the lens layout) or just a really bad idea optically.

If it worked i'm sure it would have been done by now, as the additoinal weight of the converter in a small kit for the day-out would be really handy compared with carrying a whole extra lens.

 

[lumenite]

thanks everyyone, i guess its either not possible (due to the lens layout) or just a really bad idea optically.

If it worked i'm sure it would have been done by now, as the additoinal weight of the converter in a small kit for the day-out would be really handy compared with carrying a whole extra lens.

This morning I have just tested it out a little bit. DO NOT USE IT.

My testing condition:

EOS M5; 50/1.4; Kenko HD 1.4x DGX
Indoor, 1/100, f/2.8, ISO 200.

It seems to work but does not work properly. First of all, AF problem, then image quality, and lastly camera does not operate normally.

Even when camera says AF is done, the image through viewfinder looks dim. So I tried to focus manually, which was difficult because the image through the finder did not look clear. Then I took some shots without the converter and got all clear, wonderful images.

Furthermore, my M5 does not go properly. Automatic exposure goes wrong and the lens or camera made a strange "tick" noise when I went to camera menu system.

I have not idea of 50mm F/1.8 nor other Kenko converters. I have no problem with EFS 55-250 IS STM. However, I can say, Do not use Kenko HD 1.4x DGX with 50mm F/1.4.

P.S. The following has some examples.

Kenko Teleplus HD 1.4x

Kenko Teleplus HD 1.4X works well with EOS M5. With Kenko the aperture goes down by 1 stop automatically. For example, F/4 lenses become F/5.6 lenses. But interestingly, my 28/1.8 and 50/1.4 maintain their own apertures. Does it happen because they are primes or because they are so old lenses...

www.dpreview.com

 

[crashpc]

Any thoughts on using a 50mm f1.8 with a x1.4 or X2 tekeconverter? I was wondering if this is feasible, and could it be a reasonable compact and flexible option on a M50.

I know 85mm and 100mm options exist, but this combination would surely complement the lightweight and compact M?

Or am i being daft?

I have 50mm STM and teleconverters (Kenko Teleplus HD).

It works, but it cripples the image quality quite a bit when wide open on near. You need to stop down the lens to f/5,6 or 8 for image quality being good. I didn´t find any reason why would I use it instead of 55-250mm IS STM.