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FORUMS Photography Talk by Genre General Photography Talk
Thread started 14 Aug 2016 (Sunday) 15:48
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Any Reiken Focal users ??? a distance question please

 
MedicineMan4040
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Aug 14, 2016 15:48 |  #1

The longest distance I can come up with inside is 29 feet.
Am I wasting my time trying 400,500 with 1.4 and 2.0 TC's at that distance?
Thanks for your opinion.


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Archibald
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Aug 14, 2016 16:01 |  #2

MedicineMan4040 wrote in post #18095418 (external link)
The longest distance I can come up with inside is 29 feet.
Am I wasting my time trying 400,500 with 1.4 and 2.0 TC's at that distance?
Thanks for your opinion.

You should MFA at conditions similar to your usual shooting conditions. So, set up in your back yard or local park, and never mind what the neighbors or passers-by think.


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MedicineMan4040
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Aug 14, 2016 16:17 as a reply to Archibald's post |  #3

Thanks Archibald.
My challenge going outside is the monsoon season here, constantly changing light, raining on and off for days, etc.
So I get it that real world conditions is best but to again ask my question, am I wasting my time at 29 feet?


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Archibald
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Aug 14, 2016 16:35 |  #4

MedicineMan4040 wrote in post #18095446 (external link)
Thanks Archibald.
My challenge going outside is the monsoon season here, constantly changing light, raining on and off for days, etc.
So I get it that real world conditions is best but to again ask my question, am I wasting my time at 29 feet?

I don't know, but it's just 10 minutes, isn't it? Give it a try, then go out into the real world when there is a hole in the clouds, and shoot some real targets, high contrast ones that don't move much, changing the MFA settings by a few notches on either side for different shots. Then go home and compare on the computer.

An MFA setting is just a number, one number, just like an aperture setting, and the camera doesn't care what highfalutin method you used to get it. What matters is the setting and the focus performance with what you have settled on.

What you do indoors has got to get close ... just check it out in real life and see if it is good.


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Scrumhalf
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Aug 14, 2016 16:53 |  #5

The recommendation in the manual is 20X the focal length above 300mm. Since adjustments are monotonic, any MFA adjustments you make at 29feet are going to be better than no adjustments at all, just won't be as good as it can be at the right distance. So, if you can't do it outdoors, then do it at 29 feet for now, and then pick a good day to redo it at 20X FL.


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windpig
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Aug 14, 2016 16:59 |  #6

I set up at the distance I feel I'll be shooting the most at.


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MedicineMan4040
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Aug 14, 2016 19:05 |  #7

Ok thanks for all the replies.
Bottom line Archibald it just do it :)
We've set aside next Thursday morning for the effort.....rain until then according to the metero's.
But if they're right we'll go outside.


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Archibald
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Aug 14, 2016 19:34 |  #8

MedicineMan4040 wrote in post #18095575 (external link)
Ok thanks for all the replies.
Bottom line Archibald it just do it :)
We've set aside next Thursday morning for the effort.....rain until then according to the metero's.
But if they're right we'll go outside.

Wow, watery world where you are.

Just do it, indoors or wherever. Doing it will take away some of the mystique. Then do it again whenever you think it might be necessary.


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C&C always welcome.
Picture editing OK

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MedicineMan4040
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Aug 14, 2016 20:48 |  #9

Archibald wrote in post #18095584 (external link)
Wow, watery world where you are.

Just do it, indoors or wherever. Doing it will take away some of the mystique. Then do it again whenever you think it might be necessary.

Haha, OK Archibald I'm on it,,,,,typing from inside the hospital where a duh moment occurred. We have hallways here that are 300 feet long!
Just wrote the director of security for permission to hall in a few bodies/lenses and my laptop. The upgrade to Focal Pro went well so it's ready.


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Archibald
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Aug 14, 2016 21:09 |  #10

MedicineMan4040 wrote in post #18095647 (external link)
Haha, OK Archibald I'm on it,,,,,typing from inside the hospital where a duh moment occurred. We have hallways here that are 300 feet long!
Just wrote the director of security for permission to hall in a few bodies/lenses and my laptop. The upgrade to Focal Pro went well so it's ready.

I'd love to see a pic of this!


Pentax Spotmatic F with 28/3.5, 50/1.4, 50/1.8, 135/3.5; Canon digital gear
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MedicineMan4040
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Aug 15, 2016 00:00 |  #11

Archibald wrote in post #18095656 (external link)
I'd love to see a pic of this!

Fair dinkem :) If permitted I'll get a pic of the set up.


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greyswan
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Ontario Canada
Aug 17, 2016 19:36 |  #12

I had the same problem with my 300 f4 with tc (small apartment) - I used the distance I usually shoot at and the combo is sharp as a tack now. FWIW.

Reikan Focal is an excellent program.


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MatthewK
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Aug 17, 2016 20:01 |  #13

I use Focal at the recommended 20x distance to get "in the neighborhood", and then do what Archibald said and walk around shooting static subjects to see if the setting is optimal. My favorite verification is shooting a few portraits and seeing if eyelashes are tack-sharp. If doing super tele distances, anywhere with grass and a tree trunk work because you can see where the DOF is falling in the grass.


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MedicineMan4040
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Aug 17, 2016 20:07 |  #14

Thanks again to all. We have permission to access the hospital late tomorrow night and one of several long long hallways. We'll do that to all the bodies and four lenses to establish the 'base', then do as Archibald suggests and get real world. I do want the initial foray into FoCal out of the weather---constant rain every day this week and more to come--just glad we're in the mountains and we can watch the water go downhill :(


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MatthewK
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Aug 17, 2016 20:12 |  #15

MedicineMan4040 wrote in post #18098627 (external link)
Thanks again to all. We have permission to access the hospital late tomorrow night and one of several long long hallways. We'll do that to all the bodies and four lenses to establish the 'base', then do as Archibald suggests and get real world. I do want the initial foray into FoCal out of the weather---constant rain every day this week and more to come--just glad we're in the mountains and we can watch the water go downhill :(

Leave it up to shoddy weather when you really are itching to get outside, right? Where I am, we've been enjoying 100 degree and super humid days, which makes shooting outdoors intolerable -?


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Any Reiken Focal users ??? a distance question please
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