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| 1.4 TC - Page 2 | |
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| Posted: Mon Feb 6th, 2023 16:24 |
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11th Post |
Eric
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novicius wrote:Is that the Nikkor 14 mrk. 3 ??... I have a KENKO 1.4 ,using on some shorter focal lengths incl. 24-70..35-70...70-200 f4.0..pcE 85 , not sure if I should look to the nikkor tc., but there is a 2nd hander for sale for reasonable money..how do you find focusing with it , is there noticable focus-lag ? As Geoff said, be careful about compatibility. I used the 14 III with the 500mm exclusively primarily because that’s when I wanted maximum reach. It is an exceptionally good match for the longer lenses with no loss of functionality apart from 1 stop of light loss. But I have to say when I had a Kenko 1.4 with it was perfectly acceptable. It was my observation that any loss of performance was more to do with the 1.4x magnification requiring faster shutter speeds ….and my failure to accept that, when hand holding.
____________________ Eric |
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| Posted: Wed Feb 8th, 2023 16:06 |
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12th Post |
Iain
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I have never found that TCs work very well on zoom lens till now as the Sony one works great.
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| Posted: Wed Feb 8th, 2023 20:04 |
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13th Post |
Eric
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Iain wrote:I have never found that TCs work very well on zoom lens till now as the Sony one works great. That’s a good point. I also found that tc’s tended to amplify hidden limitations in zooms that weren’t obvious when using the lens on its own. I recall doing a test comparing a straight 300mm (max zoom) image cropped to match one using a 1.4x Kenko on the 300mm. The cropped image was better! When the same tc was used on my 500mm prime the image lost nothing! It’s very much down to the quality of the lens they are used on. The Sony 200 - 600 is an excellent lens. ( the 100-400 is even better) I have wondered if a cropped 400mm + 1.4tc would match the 600mm +1.4? The 100-400 is a lot lighter and I maybe need to redo that test….it could reduce the weight of the bag.
____________________ Eric |
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| Posted: Thu Feb 9th, 2023 08:51 |
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14th Post |
Iain
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Eric wrote:
That would be an interesting test. As you say the 100-400mm is a lot lighter.
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| Posted: Fri Feb 10th, 2023 13:22 |
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15th Post |
Eric
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Iain wrote:That would be an interesting test. As you say the 100-400mm is a lot lighter. Will wait for good weather. Of course with any cropping test one has to be mindful of the iso being used. Cropping a high iso noisey image not only enlarges the subject but it enhances the background noise appearance as well. It’s one of my gripes with the 40MP sensors. Yes they give more detail when the light is right, but beware cropping them as a substitute for long lenses when the iso is high. They seem to exaggerate the noise more than a 25mp sensor.
____________________ Eric |
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| Posted: Fri Feb 10th, 2023 20:10 |
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16th Post |
Iain
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Eric wrote:Will wait for good weather. Of course with any cropping test one has to be mindful of the iso being used. I agree. That’s why out of the A9ii and the A7riii I find the A9 is the camera I prefer. It’s also got the stacked sensor as well which helps.
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| Posted: Sat Feb 25th, 2023 07:14 |
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17th Post |
blackfox
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Having had a variety of cameras and lenses and t.c’s over the years from canon,Nikon, kenko, sigma I found that some are good and some most definetly are not . These days I’m on olympus and there 1.4t.c works quiet well even fitted to my apeture limited 100-400 lens BUT caveat emptor I’m now on third copy of one the first two giving differing i.q this one does work quiet well even at F9 which is wide open with the big lens .. but it does give nearly 1200 mm of reach in full frame terms and thanks to olympus I.b.I.s and I.s ability is hand holdable
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| Posted: Sat Feb 25th, 2023 14:38 |
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18th Post |
Eric
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blackfox wrote:Having had a variety of cameras and lenses and t.c’s over the years from canon,Nikon, kenko, sigma I found that some are good and some most definetly are not . Yes that’s very true. In fact it’s also true about lenses as well as tc’s. I recall trying 3 versions of a Nikon f2.8 (expensive!) zoom lens just after digital took off, before I got one that didn’t give chromatic aberrations (fringing) in high contrast areas. The local dealer was a bit bemused and probably thought I was being a bit anal, but when you are paying £1500 for a lens (20 years ago!) it needs to be worth it. The Olympus set up would seem to be ideal for birding.
____________________ Eric |
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| Posted: Sat Feb 25th, 2023 21:50 |
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19th Post |
novicius
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Thank you all for your thoughts, it is appreciated, and yes, some investigating shows that Nikon and TC`s are a world of their own..
____________________ Back in Danmark I do not use my equipment to make photo`s .. I take photo`s to use my equipment The better I become at photography,the better my camera gets. |
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