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Teleconverter for the NX30
- Thread starter northlondon43
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- samsung nx30
Hi Adrian, sorry I've taken so long to respond with these images, but I'll get some outdoor, scenery ones for you next week. These will give you an idea though. Both these images were taken from the same spot, same camera, NX300 and same lens, Pentax 50m.m FA f1.4. So a good camera, an excellent lens, coupled with a dodgy photographer and an iffy TC.northlondon43 said:
First up is the FA 50m.m lens on oits own. The subject by the way is an LED work light.
Next we have the same image, only this time the Takumar 2x TC is used also.
As I said, I'll try to get some outdoor pics for you next week, as soon as I have a little more time, and some decent weather.
--
Have a good day.
Regards, Allan.
northlondon43
Senior Member
Nice one Allan. I'll post some soon with my Olympus TC 1.4 on my 18-200mm
Adrian
Adrian
Great idea, why not turn this into a TC thread?
captura
Forum Pro
I am using the 1.7X Olympus TCON - T01 1.7 teleconverter with success, on the 20-50 kit lens of my NX1000. The matching filter threads are the same 40.5 mm and I knocked the glass out of a filter to connect the lens and TC. There is only a tiny amount of vignetting, and not worth the trouble to do a crop. I consider this a successful project.
http://www.olympus.co.uk/site/en/c/...other_accessories/tcon_t01/tcon_t01_main.html
http://www.olympus.co.uk/site/en/c/...other_accessories/tcon_t01/tcon_t01_main.html
captura
Forum Pro
Thanks Adrian. Might only work with the 20-50, no others. The TCON -T01 is very tiny and made for the Olympus tough waterproof camera...it is solid and very well made. I paid $80 for a new one.
I first tried it on some other cameras with that thread, but there were either interference or vignetting problems. This one is OK but of course, the lens must be fully extended.
Steve
northlondon43
Senior Member
With the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Without the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Never mind the subject (our street as it happens). I wanted to post these so you could see how good the image quality is with the TC on. Both were taken from the same vantage point, on a tripod. Both are jpegs with no PP. Thoughts welcome
Adrian
Last edited:
hootsmon
Leading Member
Very nice, and good work Adrian! Looks acceptably sharp to me.
With the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Without the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Never mind the subject (our street as it happens). I wanted to post these so you could see how good the image quality is with the TC on. Both were taken from the same vantage point, on a tripod. Both are jpegs with no PP. Thoughts welcome
Adrian
Just a few thoughts (please take 'em with a pinch of salt):
- No vignetting visible at all. Awesome, and that's a relief!
- ISO 800 seems a trifle high? Reasoning is just because my (antique) NX11 does it's best work at ISO100. But of course your NX30 sensor is a vastly improved animal, ISO wise.
- Aperture f/18 seems a little high too? Reasoning is because with 1.4X teleconverter in place, the effective aperture becomes f/18 x 1.4 ==> f/25. As a rule-of-thumb, some folks reckon anything over f/11 is at risk of being diffraction-limited. So maybe something like f/8 might be a 'sweet-spot' resolution wise?
- Shutter-speed wise, 1/500sec seems OK, as I can't see any camera shake.
--
Hootsmon's Flickr album
Andrew Macdonald’s albums | Flickr
www.flickr.com
northlondon43
Senior Member
Hiya. Yeah I'm chuffed about the lack of vignetting at 200mm (which is where I'll use the TC 99% of the time). You're probably right about the high ISO but I was trying to get a decent depth of field so set the the aperture high and then a high ISO to compensate - I had no idea about effective aperture as you explained it!Very nice, and good work Adrian! Looks acceptably sharp to me.
With the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Without the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Never mind the subject (our street as it happens). I wanted to post these so you could see how good the image quality is with the TC on. Both were taken from the same vantage point, on a tripod. Both are jpegs with no PP. Thoughts welcome
Adrian
Just a few thoughts (please take 'em with a pinch of salt):
Don't laugh, but occasionally I don't use a conventional tripod per-se, but instead support the camera+lens combo using a bean-bag mounted on an upturned milk-crate. Works surprisingly well, but I do get some funny looks ;-)
- No vignetting visible at all. Awesome, and that's a relief!
- ISO 800 seems a trifle high? Reasoning is just because my (antique) NX11 does it's best work at ISO100. But of course your NX30 sensor is a vastly improved animal, ISO wise.
- Aperture f/18 seems a little high too? Reasoning is because with 1.4X teleconverter in place, the effective aperture becomes f/18 x 1.4 ==> f/25. As a rule-of-thumb, some folks reckon anything over f/11 is at risk of being diffraction-limited. So maybe something like f/8 might be a 'sweet-spot' resolution wise?
- Shutter-speed wise, 1/500sec seems OK, as I can't see any camera shake.
--
Hootsmon's Flickr album
http://www.flickr.com/photos/67469360@N05/sets/
As the combo is so front heavy I did have a problem using the gear on my travel tripod - the focus point shifted every time I tightened the head. I'm debating about getting the Manfrotto 293 lens support gear - it's £57 which seems a trifle expensive but not if I buy a larger lens at some point (whether 3rd party or the rumoured NX 300mm)?
We've all used beanbags (but a milk crate, no)
Adrian
Very good, none of that ugly vignetteung either. I still prefer my solution though, as I can get cheap Soligar 300m.m lenses and turn them into 600m.m lenses with no need for step up/down rings, and no fear of any vigneteing whatsoever. I can get a 500m.m lrnd cheaply of flea bay, and turn it into a 1000m.m besst with no vignetteing. Your pics are good though, just prefer my solution.
With the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Without the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Never mind the subject (our street as it happens). I wanted to post these so you could see how good the image quality is with the TC on. Both were taken from the same vantage point, on a tripod. Both are jpegs with no PP. Thoughts welcome
Adrian
--
Have a good day.
Regards, Allan.
The bean bag I can understand, but lugging a milk crate around? The mind boggles, lol.Very nice, and good work Adrian! Looks acceptably sharp to me.
With the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Without the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Never mind the subject (our street as it happens). I wanted to post these so you could see how good the image quality is with the TC on. Both were taken from the same vantage point, on a tripod. Both are jpegs with no PP. Thoughts welcome
Adrian
Just a few thoughts (please take 'em with a pinch of salt):
Don't laugh, but occasionally I don't use a conventional tripod per-se, but instead support the camera+lens combo using a bean-bag mounted on an upturned milk-crate. Works surprisingly well, but I do get some funny looks ;-)
- No vignetting visible at all. Awesome, and that's a relief!
- ISO 800 seems a trifle high? Reasoning is just because my (antique) NX11 does it's best work at ISO100. But of course your NX30 sensor is a vastly improved animal, ISO wise.
- Aperture f/18 seems a little high too? Reasoning is because with 1.4X teleconverter in place, the effective aperture becomes f/18 x 1.4 ==> f/25. As a rule-of-thumb, some folks reckon anything over f/11 is at risk of being diffraction-limited. So maybe something like f/8 might be a 'sweet-spot' resolution wise?
- Shutter-speed wise, 1/500sec seems OK, as I can't see any camera shake.
--
Hootsmon's Flickr album
http://www.flickr.com/photos/67469360@N05/sets/
--
Have a good day.
Regards, Allan.
northlondon43
Senior Member
Oh hell I went ahead and bought the manfrotto support. It's a simple yet very effective piece of kit; fully supports the lens and TCHiya. Yeah I'm chuffed about the lack of vignetting at 200mm (which is where I'll use the TC 99% of the time). You're probably right about the high ISO but I was trying to get a decent depth of field so set the the aperture high and then a high ISO to compensate - I had no idea about effective aperture as you explained it!Very nice, and good work Adrian! Looks acceptably sharp to me.
With the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Without the TC 1.4, 18-200mm at 200mm, f/18, 1/500 sec, ISO 800
Never mind the subject (our street as it happens). I wanted to post these so you could see how good the image quality is with the TC on. Both were taken from the same vantage point, on a tripod. Both are jpegs with no PP. Thoughts welcome
Adrian
Just a few thoughts (please take 'em with a pinch of salt):
Don't laugh, but occasionally I don't use a conventional tripod per-se, but instead support the camera+lens combo using a bean-bag mounted on an upturned milk-crate. Works surprisingly well, but I do get some funny looks ;-)
- No vignetting visible at all. Awesome, and that's a relief!
- ISO 800 seems a trifle high? Reasoning is just because my (antique) NX11 does it's best work at ISO100. But of course your NX30 sensor is a vastly improved animal, ISO wise.
- Aperture f/18 seems a little high too? Reasoning is because with 1.4X teleconverter in place, the effective aperture becomes f/18 x 1.4 ==> f/25. As a rule-of-thumb, some folks reckon anything over f/11 is at risk of being diffraction-limited. So maybe something like f/8 might be a 'sweet-spot' resolution wise?
- Shutter-speed wise, 1/500sec seems OK, as I can't see any camera shake.
--
Hootsmon's Flickr album
http://www.flickr.com/photos/67469360@N05/sets/
As the combo is so front heavy I did have a problem using the gear on my travel tripod - the focus point shifted every time I tightened the head. I'm debating about getting the Manfrotto 293 lens support gear - it's £57 which seems a trifle expensive but not if I buy a larger lens at some point (whether 3rd party or the rumoured NX 300mm)?
We've all used beanbags (but a milk crate, no)
Adrian
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