Kenko on Nikon 200-500mm
Jul 26, 2016 16:50:03 #
amfoto1 wrote:
Well, there's your problem! br br Get a DX camera... (show quote)
Just ordered a Nikon refurbished D5500. I thought about a D7xxx but didn't want to spend that much $$. Hope I made the right decision.
Jul 26, 2016 18:02:28 #
wingclui44 wrote:
I don't understand what does 'Hanging the shutter' mean?
My TC is on my 300mm Nikon all the time since getting it last year. I went to Alaska with it on my Nikon Df, bringing home over 1200 shots, 1/3 of them were from this lens. I don't know what's the problem of yours.
My TC is on my 300mm Nikon all the time since getting it last year. I went to Alaska with it on my Nikon Df, bringing home over 1200 shots, 1/3 of them were from this lens. I don't know what's the problem of yours.
Hanging the shutter; kept it open for seconds at a time before letting it close. Still cannot find out what caused it; neither Kenko nor Nikon will address it, investigate it or even admit it can happen; yet it continued to do it on two different camera bodies; D80 and D3100 and, on two different lenses; 300mm f4.0 AF and 70-201mm f4.0, and two different kenko converters; assuming they really replaced it as they claimed they did. It's all good in the long run; I got my money back so I'm not out anything except the repair on the D80.
Jul 26, 2016 19:44:26 #
wingclui44
Loc: CT USA
whitewolfowner wrote:
Hanging the shutter; kept it open for seconds at a... (show quote)
The lens will have nothing do with the camera shutter control, except if you use "aperture priority" mode or "Auto" mode when in very low light situation and with low ISO, so your shutter speed will be very low to a few second. Try again to wide open the lens in bright out door, and set a higher ISO and see how the shutter response. Or try all manual mode, good luck.
Jul 27, 2016 05:24:07 #
I use a 1.4x tc on my 100-300mm and 80-300mm lenses. they top out at f5.6 so auto focus works fine I also use the tc on both aps-c and ff cameras, so far so good. lastly I use the 1.4 tc with my 500mm af reflex lens, on bright days the auto focus works fine. the images look good to me. some people have a problem with them because they don't hold their mouth right.
Jul 27, 2016 05:25:11 #
wingclui44 wrote:
The lens will have nothing do with the camera shutter control, except if you use "aperture priority" mode or "Auto" mode when in very low light situation and with low ISO, so your shutter speed will be very low to a few second. Try again to wide open the lens in bright out door, and set a higher ISO and see how the shutter response. Or try all manual mode, good luck.
That is close to the situation I was shooting in. Aperture priority mode, anywhere from about 1/1600 to 1/800 of a second, medium ISO range around 200-400. Out of thousands of shots, it only did it when the Kenko was on and I tested multiple times. The teleconverter was the culprit, no doubt about it. Why, I do not know, but it caused the problem.
Jul 27, 2016 08:21:26 #
wingclui44
Loc: CT USA
whitewolfowner wrote:
That is close to the situation I was shooting in. Aperture priority mode, anywhere from about 1/1600 to 1/800 of a second, medium ISO range around 200-400. Out of thousands of shots, it only did it when the Kenko was on and I tested multiple times. The teleconverter was the culprit, no doubt about it. Why, I do not know, but it caused the problem.
May be you got a bad apple, why don't you contact Kenko to address this problem. It may be caused by crossed circuit in the lens and caused short-circus. Send it back to Kenko for them to check it up, and you may get some compensation from them.
Jul 27, 2016 08:34:27 #
wingclui44 wrote:
May be you got a bad apple, why don't you contact Kenko to address this problem. It may be caused by crossed circuit in the lens and caused short-circus. Send it back to Kenko for them to check it up, and you may get some compensation from them.
Read above earlier in this forum; I already did that with no help or compensation form them. Their answer was claim they exchanged it for another; and I got the same results. Nikon was no help either.
Jul 27, 2016 08:45:21 #
wingclui44
Loc: CT USA
whitewolfowner wrote:
Read above earlier in this forum; I already did that with no help or compensation form them. Their answer was claim they exchanged it for another; and I got the same results. Nikon was no help either.
Of course, Nikon doesn't want any one using off brand product on their camera, they won't be responsible for the damage.
Is your camera still working normally with out the TC? Then it's no damage done.
Jul 27, 2016 08:55:28 #
wingclui44 wrote:
Of course, Nikon doesn't want any one using off brand product on their camera, they won't be responsible for the damage.
Is your camera still working normally with out the TC? Then it's no damage done.
Is your camera still working normally with out the TC? Then it's no damage done.
It's fine now after having been repaired. After both Nikon and Kenko assuring me that their would be no damage to my camera it eventually blew out an electronics board on the D80 and had to go in for repair. It is fine now and working OK, but the Kenko 1.4 teleconverter continues to hold the shutter open for seconds at a time about every 150 frames shot; so I took it off and it sits in my camera bag unused. I don't want to sell it and pass the problem on to another person, so there it sits!
Jul 27, 2016 10:28:28 #
wingclui44
Loc: CT USA
whitewolfowner wrote:
It's fine now after having been repaired. After b... (show quote)
Great, your problem is over, but if you consider ask Kenko for a refund? They sold you a bad one!
Jul 28, 2016 04:58:19 #
wingclui44 wrote:
Great, your problem is over, but if you consider ask Kenko for a refund? They sold you a bad one!
The only thing Kenko would do is to claim to have sent me another one. Can't tell if they did or not because they have no serial number on them. The new one, if it was did the same thing, so I just have lost faith in them and their products.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.