Olympus UK E-System User Group

Olympus UK E-System User Group (http://e-group.uk.net/forum/index.php)
-   Converters, adapters and extension tubes (http://e-group.uk.net/forum/forumdisplay.php?f=39)
-   -   EC-20 and 50-200 SWD (http://e-group.uk.net/forum/showthread.php?t=13640)

Tordan58 23rd March 2011 05:37 PM

EC-20 and 50-200 SWD
 
Hi all,

Olympus product specification don't specify anything about EC-20 compatibility with 50-200 SWD. Has anyone here experience of this combination, how it performs and the quality of results achieved?

(Apologies if this question has already been answered elsewhere on this forum).

Regards,
Tord

Ian 23rd March 2011 05:44 PM

Re: EC-20 and 50-200 SWD
 
It works, but I feel the EC-14 is a more natural companion to the 50-200. With the EC-20 your apertures range from 5.6-7 instead of 4-5.

Ian

Melaka 23rd March 2011 05:57 PM

Re: EC-20 and 50-200 SWD
 
The EC14 and 50-200 is an excellent combination. I don't use my EC20 with that lens, only with the SHG ones.

Greytop 23rd March 2011 06:09 PM

Re: EC-20 and 50-200 SWD
 
Hello Tord,

If you have reasonable light it can be a surprising combination, here are a couple of examples...

http://e-group.uk.net/forum/showthread.php?t=13560

http://e-group.uk.net/forum/showthread.php?t=12608

Ian and David are certainly right in that the EC-14 and 50-200 SWD make better companions but the I have to admit the EC-20 surprised me (in a most pleasant way) :)

Ian 23rd March 2011 06:17 PM

Re: EC-20 and 50-200 SWD
 
Huw (Greytop) nails it - the EC-20 is great with the 50-200 if you have good light.

Ian

David M 23rd March 2011 10:30 PM

Re: EC-20 and 50-200 SWD
 
Taken with an E-3/50-200SWD/EC-14 in Ontario, Canada;

http://e-group.uk.net/gallery/data/500/2010662.jpg

A hand held shot, a real rarity for me as a habitual tripod user. I don't own the EC-20, if I need longer than the 50-200/EC-14 combo I use my legacy OM 350mm f2.8.

CallaWolf 24th March 2011 10:24 AM

Re: EC-20 and 50-200 SWD
 
I've only been able to play with my 50-200 (non SWD) + EC-20 combo a few times since the arrival of my E-5 but I've been really surprised at how snappy the focus is and how detailed the shots are. Nothing to post as yet as I've not had the time to PP but I know the results are there (note - the weather has been glorious. I wouldn't use this combo in anything less than bright light).

Robusto 12th April 2011 09:14 PM

Re: EC-20 and 50-200 SWD
 
If i am using the 50-200 on my E30 Which EC would be best for me to improve my range and will it affect the ability of the 50-200 in poor light and speed as its for evening football?

Tordan58 12th April 2011 09:40 PM

Re: EC-20 and 50-200 SWD
 
Hi Robusto,

I started the thread by raising the question if the EC20 would be a good companion to the 50-200 SWD.

The answers seem to indicate that it would work and provide good results but under good light conditions only. I guess you would also lose the point using the 50-200, namely the lens speed. With the EC20 you would lose 2EV, turning the lens into a F5.6-6.3 which is probably not what you are looking for...

Light conditions for evening football should be EV 9 according to (wikipedia), which would turn into an exposure time of ~ 1/120-1/100 s at ISO 800 wide open aperture. Not sure if that is fast enough for freezing football action.

(The table shows exposure time and apertures for ISO 100. What ISO you are prepared to use is up to you, you may need higher ISO than 800 to get acceptable shutter speed).


Hope this helps
Tord

Robusto 12th April 2011 09:47 PM

Re: EC-20 and 50-200 SWD
 
Tord

thanks for that to be honest i have had to push the ISO up to the Max 3200

to achieve 1/500 as the lighting at some of the grounds is very poor at Pro Games i can get away with ISO 400 as the lighs are much stronger and more of them , i just wondered as if i am at the far end of the pitch then i cannot reach with the 50-200 and cannot use the 70-300 due to the speed

thanks

Melaka 13th April 2011 05:50 AM

Re: EC-20 and 50-200 SWD
 
It's not the sort of photography I do but I'd be very surprised if the EC20 would cut the mustard in poor light. If you win the lottery Woofmix's 90-250 is for sale and I would expect that to be ideal. I'm trying to justify making an offer for it myself.

Greytop 13th April 2011 08:05 AM

Re: EC-20 and 50-200 SWD
 
With an aperture range between f/5.6 and f/7 when fitted with the EC-20 I wouldn't expect much success in challenging lighting conditions.
My best results with the EC-20 and 50-200 SWD have been in brighter conditions.

The saving grace is that even at wide open I find them to be a sharp combination but I don't think that will be enough for your situation.

Tordan58 20th June 2011 10:08 PM

Re: EC-20 and 50-200 SWD
 
Hi all

I tested an EC20 as companion to 50-200 SWD the past weekend, light conditions were good with slight haze in late afternoon (EV14 I would say).

I believe the image quality is OK, with some loss of contrast and softening increasing when zooming in (I would say ~170 mm is the upper limit).

The AF behavior had issues with the zoom extended, and would quite often give up (depending on subject). To be on the safe side one has to lock focus at half zoom or so and then zoom in, with a fair chance to have the AF lock properly. Once focus was set the AF however managed to keep track of moving targets, as the attached samples demonstrate.



ISO 800, IS.1
  • Starlings: 108 mm (almost widest angle), 1/1600 s, F7.1, almost no cropping
  • Tern: 274 mm (slightly above half zoom), 1/1000 s, F7.0, 20% cropping
  • Lapwing: 400 mm (max zoom), 1/800 s, F7.0, 10% cropping

What do you think?

Cheers
Tord

http://e-group.uk.net/gallery/data/1..._vulgaris_.jpg

http://e-group.uk.net/gallery/data/1..._hirundo_1.JPG

http://e-group.uk.net/gallery/data/1...vanellus_3.jpg

eviscerator 30th July 2011 12:48 PM

Re: EC-20 and 50-200 SWD
 
I have used the combination 50-200swd with ec20 for some time before switching to the sigma 50-500.

All I can say until now is that I have been quite much unimpressed with this combination. Wide open and not I always noticed some weird ghosting around subjects and all fine detail always resulted oddly blurred (tripod, handhold, IS on and off etc, still the same).

Maybe I'm doing something wrong but while I could achieve a lot of tack sharp pics with sigma 50-500 even at 500FL, I could never achieve one with the 50-200+ec20 combo.

That's odd!

katran 11th January 2013 09:08 AM

Re: EC-20 and 50-200 SWD
 
I know it is an old topic, but I thought it makes sense to write about my experience with 50-200 I + EC-20 + E-5.

1. APERTURE vs SHARPNESS :
When using maximum focal length (400 mm), the aperture must be stopped down to F/9.0 to get sharp pictures.
Many people are using the aperture wide open (F/7.1) and they get very soft pictures, of course.

2. FOCAL LENGTH vs SHARPNESS :
50-200 + EC-20 is much sharper when the focal length is reduced to 300 mm (150mm x 2).
Normally I stay in this range : 300...350 mm to get sharp results.
At 300mm this combo is sharp.

3. FAST SUBJECTS (BIFs) :
Shooting BIFs is possible with this combo only if the birds are slow and/or far away. If the bird is very close and fast, this combo is almost unusable.

4. BACKGROUND :
With EC-20 the background becomes very nice blured. It is making a very good separation of the subject from background.

5. CROMATIC ABERATIONS :
EC-20 produces very often chromatic aberations.
These can be removed with some editing work.

6. BEST PLACE TO USE EC-20 :
Video is the area where 50-200 + EC-20 are shining. I can get a very good magnification of the subject without any visible compromise.

7. Noise
I know the noise is not affected directly by a lens.
But when a lens is soft, the NR module does not work very good.
It is just a feeling, that I got stronger noise when putting EC20 on 50-200 even at low ISO values : ISO-200, ISO-400.
This is probably because the pictures are loosing resolution and the the NR algorithm of the camera cannot do a very good job.
So I get strong noise even at ISO-400 sometimes when using 50-200 + EC-20.

8. Personal conclusions :
- EC-20 brings advantages only in the shiny days. In the low-light days should be removed from 50-200.
- Video is the place where EC-20 shines, it is very good.
- Mounted on 50-200 and compared with EC-14, EC-20 does not bring any real-resolution advantage, but it brings more dezatvantages than EC-14.
I would prefere to put EC-14 on 50-200, because I get the same real resolution as with EC-20, i loose only one stop and I have minimal loss for resolution and focusing speed.
EC-14 + 50-200 can be used also in low-light days.

Probably on an SHG lens (like 150 F/2.0, 300 MM F/2.0) EC20 works well. But me, personal, I do not have such lenses.

I like to use EC20 even on 50-200 because of the pleasure to have a very confortable long focal length.

I will put a few pictures made with 50-200 + EC-20.

Buzzard in flight - E5, 50-200+EC-20, 315 mm, ISO-400, F/9.0, 1/1250s :

http://farm9.staticflickr.com/8222/8...ae717a83_c.jpg
Rough-legged Buzzard / Sorecarul incaltat by Fraton, on Flickr


Kestrel in flight - E-5, 50-200+EC20, 400mm, F/9.0, ISO-400, 1/640s :

http://farm9.staticflickr.com/8356/8...fc5e832e_c.jpg
Common Kestrel / Vanturel rosu by Fraton, on Flickr


Cormoran portrait - E5, 50-200+EC20, F/9.0, 400mm, ISO-640, 1/1000s :
http://farm9.staticflickr.com/8348/8...2ed42997_c.jpg
Cormoran by Fraton, on Flickr



BLACK WINGED STILT / Piciorong - E-5, 50-200 + EC-20, F.9.0, 400mm, ISO-500, 1/1000s :

http://farm8.staticflickr.com/7070/6...10c429e2_c.jpg
BLACK WINGED STILT / Piciorong by Fraton, on Flickr

Pictures can be view in higher resolution on Flickr (1600 x 1200).


All times are GMT. The time now is 10:10 AM.


The Write Technology Ltd, 2007-2019, All rights reservedAd Management plugin by RedTyger