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Big Dawg
Joined: 28 Jan 2009
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Location: Thach Alabama
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 Posted: Fri Oct 15, 2010 12:46 am Post subject: An inexpensive birding combo. |
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Big Dawg wrote:
The Vivitar 400mm f/6.3 T4 lens and a 2X screw mount TC. They won't make me retire my Sigma 50-500 lens but they do a nice job for less than 50-75 dollars according to how you acquire them.
No crops here and very very little PP involved. Distances from 30-70 feet. Hand held.
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woodrim
Joined: 14 Jan 2010
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Location: Charleston
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| Posted: Fri Oct 15, 2010 12:52 am Post subject: |
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woodrim wrote:
Too soft.
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mo
Joined: 27 Aug 2009
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| Posted: Fri Oct 15, 2010 1:05 am Post subject: |
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mo wrote:
Could you try a few on the tripod just to see if there is any improvement....how heavy is the 400mm? Not bad for Hand held.
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Big Dawg
Joined: 28 Jan 2009
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Location: Thach Alabama
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| Posted: Fri Oct 15, 2010 1:07 am Post subject: |
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Big Dawg wrote:
For what they cost they are sharp enough. LOL
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Big Dawg
Joined: 28 Jan 2009
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Location: Thach Alabama
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| Posted: Fri Oct 15, 2010 1:09 am Post subject: |
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Big Dawg wrote:
| mo wrote: |
| Could you try a few on the tripod just to see if there is any improvement....how heavy is the 400mm? Not bad for Hand held. |
Tripod's about the same. 985g. Total with the TC is a little over 1,000g.
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mo
Joined: 27 Aug 2009
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| Posted: Fri Oct 15, 2010 1:15 am Post subject: |
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mo wrote:
Thanks BD....worth thinking about if the price is right. 
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fish4570
Joined: 06 Jan 2010
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| Posted: Fri Oct 15, 2010 1:27 am Post subject: |
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fish4570 wrote:
I have a Spiratone 400/6.3 pre-set that I would let go.
BD, is it the same lens?
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gaeger
Joined: 16 Jan 2010
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Location: Brier, Wash.
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| Posted: Fri Oct 15, 2010 3:18 am Post subject: |
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gaeger wrote:
I also had the Vivitar 400mm f6.3 for a while -- there was no way I could hand hold it, so my hat's off to you, BD. A couple frames with it on a tripod:
http://www.flickr.com/photos/gaeger2/4320438937/
http://www.flickr.com/photos/gaeger2/4321172082/
I agree -- in good conditions, could be fine for birding.
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Big Dawg
Joined: 28 Jan 2009
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Location: Thach Alabama
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| Posted: Fri Oct 15, 2010 3:30 pm Post subject: |
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Big Dawg wrote:
| fish4570 wrote: |
I have a Spiratone 400/6.3 pre-set that I would let go.
BD, is it the same lens? |
Not the same Paul. This is the T4 mount lens from Tokina.
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Big Dawg
Joined: 28 Jan 2009
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| Posted: Fri Oct 15, 2010 3:32 pm Post subject: |
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Big Dawg wrote:
Some nice ones there. Was your's the T4 or the fixed mount?
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Michael Markey
Joined: 17 Sep 2010
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Location: UK
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| Posted: Fri Oct 15, 2010 8:15 pm Post subject: |
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Michael Markey wrote:
Very nice shots.Like the Cardinals.
Don`t know what the birding scene is like in the States but a lot of birders in the UK digiscope.
We all have telescopes and some attach their point and shoots to the scopes using a varity of after market devices which maintain the camera at a steady fixed angle but allow it to be swung clear when you need to use the scope.
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Big Dawg
Joined: 28 Jan 2009
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| Posted: Fri Oct 15, 2010 10:29 pm Post subject: |
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Big Dawg wrote:
Quite a bit of that here as well but I never got the digi-scope bug.
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gaeger
Joined: 16 Jan 2010
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| Posted: Fri Oct 15, 2010 11:04 pm Post subject: |
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gaeger wrote:
| Big Dawg wrote: |
Some nice ones there. Was your's the T4 or the fixed mount? |
Hi there: It was the T4 -- the only one I've ever owned!
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tkbslc
Joined: 02 Jul 2009
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Location: Utah, USA
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| Posted: Fri Oct 15, 2010 11:48 pm Post subject: |
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tkbslc wrote:
| Big Dawg wrote: |
For what they cost they are sharp enough. LOL |
Just because they were cheap, doesn't mean those are usable images. Those don't even look remotely sharp at web size.
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Big Dawg
Joined: 28 Jan 2009
Posts: 2530
Location: Thach Alabama
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| Posted: Sat Oct 16, 2010 12:58 am Post subject: |
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Big Dawg wrote:
| tkbslc wrote: |
| Big Dawg wrote: |
For what they cost they are sharp enough. LOL |
Just because they were cheap, doesn't mean those are usable images. Those don't even look remotely sharp at web size. |
Maybe so but I like them. LOL And usable for what? My pleasure in enjoying them? They do that well enough.
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luisalegria
Joined: 07 Mar 2008
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| Posted: Sat Oct 16, 2010 2:22 am Post subject: |
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luisalegria wrote:
Extremely well done with that equipment. Hitting focus with 800mm, that close, is an achievement by itself. On moving birds, its even better.
800mm handheld is too much for me.
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Big Dawg
Joined: 28 Jan 2009
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Location: Thach Alabama
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| Posted: Sat Oct 16, 2010 3:04 am Post subject: |
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Big Dawg wrote:
| luisalegria wrote: |
Extremely well done with that equipment. Hitting focus with 800mm, that close, is an achievement by itself. On moving birds, its even better.
800mm handheld is too much for me. |
Thanks. The fact that the TC took out any focus confirmation made it very difficult.
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Hards80
Joined: 14 Oct 2010
Posts: 16
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| Posted: Sun Oct 17, 2010 6:27 pm Post subject: |
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Hards80 wrote:
BD- thanks for the welcome in the other thread my friend. good to see you here, I just found this forum a few days ago, very nice and informative place. Was not surprised to see you here, given your nice selection of legacy glass
I agree with the above post, hitting close focus at 800mm without focus confirmation, that is no easy task lol. nice combo and reach for the price. |
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pat donnelly
Joined: 19 Jan 2010
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Location: Brisbane, Australia
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| Posted: Mon Oct 18, 2010 11:27 am Post subject: Very Interesting |
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pat donnelly wrote:
Very High ISO? The noise may be softening the result more than the faults in the lens as in parts of the photos the sharpness is as you rightly say, adequate. Do you try to reduce noise much?
I would still ask you to use a mirror lens! For these subjects, particularly. Easier to hand hold?
Thanks for posting, useful as always!
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Big Dawg
Joined: 28 Jan 2009
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Location: Thach Alabama
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| Posted: Tue Oct 19, 2010 4:49 am Post subject: |
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Big Dawg wrote:
| Hards80 wrote: |
BD- thanks for the welcome in the other thread my friend. good to see you here, I just found this forum a few days ago, very nice and informative place. Was not surprised to see you here, given your nice selection of legacy glass
I agree with the above post, hitting close focus at 800mm without focus confirmation, that is no easy task lol. nice combo and reach for the price. |
Thanks my good friend. I am glad to see you here. You'll find the folks here much the same as the good folks at Steve's.
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Big Dawg
Joined: 28 Jan 2009
Posts: 2530
Location: Thach Alabama
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| Posted: Tue Oct 19, 2010 4:54 am Post subject: Re: Very Interesting |
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Big Dawg wrote:
| pat donnelly wrote: |
Very High ISO? The noise may be softening the result more than the faults in the lens as in parts of the photos the sharpness is as you rightly say, adequate. Do you try to reduce noise much?
I would still ask you to use a mirror lens! For these subjects, particularly. Easier to hand hold?
Thanks for posting, useful as always! |
ISO 400-800 but no noise reduction software used. The actual focus when taking these photos was a little soft. No matter how I tried it just would not resolve much better than these show. Some to do with the available light but more I think to do with the amount of glass in the way. I'm going to try my other TC's on this to see if there is any improvement.
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walter g
Joined: 20 Feb 2010
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Location: NC, USA
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| Posted: Tue Oct 19, 2010 4:57 am Post subject: |
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walter g wrote:
| Big Dawg wrote: |
| luisalegria wrote: |
Extremely well done with that equipment. Hitting focus with 800mm, that close, is an achievement by itself. On moving birds, its even better.
800mm handheld is too much for me. |
Thanks. The fact that the TC took out any focus confirmation made it very difficult. |
Just curious. I shoot film only. But if you used an Auto TC, you would get focus confirm. wouldn't you?
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komet
Joined: 22 Oct 2009
Posts: 28
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| Posted: Tue Oct 19, 2010 8:11 pm Post subject: Re: An inexpensive birding combo. |
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komet wrote:
[quote="Big Dawg"]The Vivitar 400mm f/6.3 T4 lens and a 2X screw mount TC. They won't make me retire my Sigma 50-500 lens but they do a nice job for less than 50-75 dollars according to how you acquire them.
No crops here and very very little PP involved. Distances from 30-70 feet. Hand held.
Hello, not convincing examples!
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kansalliskala
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| Posted: Wed Oct 20, 2010 9:19 am Post subject: |
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kansalliskala wrote:
Depends on where you want to use them. They would not go to "Alabama illustrated book of birds" but if I saw any of those bird on the roof next door I could send these photos to local newspapers.
Last summer I actually saw an extremely rare insect here in my garden but my stupid Sigma 50/2.8 af macro scared it away.
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pat donnelly
Joined: 19 Jan 2010
Posts: 666
Location: Brisbane, Australia
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| Posted: Wed Oct 20, 2010 10:17 am Post subject: Focus confirm |
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pat donnelly wrote:
Walter G
I am sure Big Dog will reply to you when he gets a chance, but maybe the answer is:
When too much glass is used, the f stop goes beyond f1:8 and thn the electronics cannot cope? A 2x and a f1:4.5 makes f1:9?
It is, as you imply, possible that he had manually stopped down, but the lens is slowish anyway?
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