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Guest Message by DevFuse
 

Photo
- - - - -

X100 w/ Ricoh TC-1 (1.88x)

X100

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18 replies to this topic

#1 gleeman

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Posted 02 March 2012 - 05:05 AM

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52-49 + 49-52 + 52-43

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very slight vignette when the lens is focused on a near distance object

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PROS
lightweight
low distortion, low CA


CONS
bigger vignette(when focusing at far distance)
AF hit or miss

#2 videogamemaker

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Posted 02 March 2012 - 07:37 AM

Thanks for the examples. Your filter adapters look like they push the adapter quite far from the lens. Maybe try using slimmer ones or a single adapter if possible?



#3 gleeman

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Posted 02 March 2012 - 07:54 AM

Thanks for the examples. Your filter adapters look like they push the adapter quite far from the lens. Maybe try using slimmer ones or a single adapter if possible?

this is the best setup I've tried so far
I also tried 49mm adapter + 49-43 step down ring, the lens will hit the 49-43 ring if You try to focus

Posted Image

#4 gleeman

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Posted 02 March 2012 - 08:58 AM

more photos
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#5 Frankie

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Posted 02 March 2012 - 09:19 AM

this is the best setup I've tried so far
I also tried 49mm adapter + 49-43 step down ring, the lens will hit the 49-43 ring if You try to focus

I am interested in this tele-adapter.

What is the mounting thread size? Studying your pictures, I presume it is f-52mm???

If so, there is an adapter ring that changes the Fuji f-49mm into a f-52mm and may provide the closest fitting...which should also clear the X-100 lens at macro mode. See:

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#6 gleeman

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Posted 02 March 2012 - 09:21 AM

I am interested in this tele-adapter.

What is the mounting thread size? Studying your pictures, I presume it is f-52mm???

If so, there is an adapter ring that changes the Fuji f-49mm into a f-52mm and may provide the closest fitting...which should also clear the X-100 lens at macro mode. See:

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Hi Frankie
it's 43mm thread

Posted Image

as you see, I tried a 49-43mm step down ring first, the lens will hit it

current Setup :52-49(as a short 49mm adapter) + 49-52 + 52-43
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(52-49 as a short 49mm adapter)



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(49-52 + 52-43)

#7 Frankie

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Posted 02 March 2012 - 09:35 AM

Hi Frankie
it's 43mm thread

as you see, I tried a 49-43mm step down ring first, the lens will hit it

So, what is needed is a thread-size build up from f-43mm to f-49mm...I have used such devices before, might even have one in-stock...stay tuned.

See:

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To avoid the X-100 lens hitting something, an 8mm allowance from the back flange [after screwing off the cover-ring] is needed. Fuji, UN and many others have a total ring depth of 9.2mm [allowing for also a filter]

I will try also to find a f-49mm to f-43mm adapter of 8mm+ depth...that way, the Ricoh unit and be mounted directly onto the f-49mm Fuji lens thread.

#8 gleeman

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Posted 02 March 2012 - 09:53 AM

So, what is needed is a thread-size build up from f-43mm to f-49mm...I have used such devices before, might even have one in-stock...stay tuned.


Frankie,
I have one
the fuji lens will hit the 49-43 ring, not the back flange of teleconverter

49-43

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52-43

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#9 Frankie

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Posted 02 March 2012 - 10:04 AM

Frankie,
I have one
the lens will hit the 49-43 ring, not the teleconverter

Ah...now I understand.

The X-100 lens unit dia. is ~45mm...will hit any smaller opening if not enough depth is allowed.

So, the thread-reducer needs to be nearly flat...at least not pround of the Ricoh thread itself. What...~2.5mm???

What is needed is a one-piece f-49mm to f-43mm adapter with a cavity depth of 8mm+...similar to this DIY hood idea except the threaded opening is 43mm. [The ID of that m-49mm~f-43mm donor part is 46mm and clears the X-100 lens unit.]

Posted Image

I have studied your set-up in Post 1. Also, the Ricoh lens quality is the best I have seen...if the vignetting could indeed be reduced to the minimum by mounting the unit closest to the X-100 lens.

I would be happy even if the set-up only works in non-macro mode. In such case, the depth needed is only 4mm total [The X-100 lens at "off" protrudes 0.6mm beyond the lens collar; recesses ~1mm at infinity and flush at 0.5m focal distances]. My avatar DIY dome hood is based on those measurements.

#10 gleeman

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Posted 02 March 2012 - 07:30 PM

Ah...now I understand.

The X-100 lens unit dia. is ~45mm...will hit any smaller opening if not enough depth is allowed.

So, the thread-reducer needs to be nearly flat...at least not pround of the Ricoh thread itself. What...~2.5mm???

What is needed is a one-piece f-49mm to f-43mm adapter with a cavity depth of 8mm+...similar to this DIY hood idea except the threaded opening is 43mm. [The ID of that m-49mm~f-43mm donor part is 46mm and clears the X-100 lens unit.]

Posted Image

I have studied your set-up in Post 1. Also, the Ricoh lens quality is the best I have seen...if the vignetting could indeed be reduced to the minimum by mounting the unit closest to the X-100 lens.

I would be happy even if the set-up only works in non-macro mode. In such case, the depth needed is only 4mm total [The X-100 lens at "off" protrudes 0.6mm beyond the lens collar; recesses ~1mm at infinity and flush at 0.5m focal distances]. My avatar DIY dome hood is based on those measurements.

Hello Frankie
maybe you can make a adjustable adapter ... :rolleyes:


also I think that we'll be happy with this teleconverter if the X100 has in-camera digital zoom/crop to about 50mm lens FL ....

#11 gleeman

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Posted 03 March 2012 - 03:30 AM

1.this is AF-without-macro setup (also focus distance must be far than 2M to avoid hitting the lens)
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52-49(52mm male thread) + 58-52(52mm female thread inside) +52-43(52mm male thread)

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2.compare to AF-with-macro setup(52-49 + 49-52 + 52-43)

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3.MF and handheld the teleconverter,that's the limit I can reach

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#12 Frankie

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Posted 03 March 2012 - 07:34 AM

Hello Frankie
maybe you can make a adjustable adapter ... :rolleyes:
also I think that we'll be happy with this teleconverter if the X100 has in-camera digital zoom/crop to about 50mm lens FL ....

This is what I have in mind:

The f-49mm silver adapter ring is wide enough and depth good enough for maximum macro...as is in the set-up pictured. All I have to do is replacing the original f-30.5mm adapter pictured [minimum ID 46mm] with a f-43mm one [minimum ID 46mm if available or lathe to fit]...the Ricoh TC-1 screws right in.

Counting threads in your pictures, the TC-1 would need 3 x 0.75mm+ in total thread depth, plus something... What is the total depth from flange???

In making a thin MF non-macro unit, internal depth for the lens needs only be 4mm [same as my DIY hood], reducing the distance resulting in a little vignetting at f-11, very much like your hand-held shot.

[The X-100 lens at "off" protrudes 0.6mm beyond the lens collar; recesses ~1mm at infinity and flush at 0.5m focal distances...tried-and-true].

Posted Image

I would probably make it in two pieces, with the silver adapter ring only deep enough so that after unscrewing the TC-1/adaptor-top as one unit would leave enough thread [3 x 0.75mm] in the silver ring as a simple f-49mm thread adapter for dome hood and filters.

Post-processing cropping of residual vignetting is easy enough.

#13 gleeman

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Posted 10 March 2012 - 10:20 PM

Posted Image

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#14 jknights

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Posted 16 March 2012 - 08:39 AM

These results are similar to when I tried a x3 teleconverter.
My x2 unit also vignettes very slightly from f4/5.6 upwards.
The same is true with the x2.2 but it starts to vignette at f2.8

I'm sure that somewhere there is a solution but I just need to find a good camera shop with a lot of different sized teleconverters.



#15 gleeman

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Posted 16 March 2012 - 06:08 PM

Vignette is not a big deal
I've tried some TCs,
This TC is the only one delivered low CA and low distortion.so far


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F8 ,JPEG ,cropped





Also tagged with one or more of these keywords: X100