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4X Test - Any Advice?
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Saul



Joined: 31 Jan 2011
Posts: 911
Location: Naperville, IL USA

PostPosted: Tue Nov 07, 2017 9:42 am    Post subject: Re: 4X Test - Any Advice? Reply with quote

RobertOToole wrote:
Saul wrote:
RobertOToole wrote:
...Suggestions, ideas, recommendations?...


Schneider Componon 80mm f4


Thanks Saul.

Have you tried it at the high mag?

Robert


Do not remember going more than 3.5-4
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mawyatt



Joined: 22 Aug 2013
Posts: 980

PostPosted: Tue Nov 07, 2017 9:58 am    Post subject: Reply with quote

RobertOToole wrote:
mawyatt wrote:
Robert,

What about a Mitutoyo 5X Inf 200mm brought down to ~4X with a 160mm tube lens?

Best,

Mike


Hi Mike,

I was going to try to stay away from the Mity, but I do have a 4X. What is a good 160mm tube lens? I have a Raynox 6x, thats 170mm, that would be what 4.25x?

Robert


Robert,

Didn't know Mitty had a 4X in the Inf 200mm category. If so, then you just need a 200mm for a tube lens. The Raynox 150 (208mm) works well, as does the old Nikon 200mm F4 "Q" lens, both are not expensive.

The Mitty 5X will require something around 160mm, so maybe your Raynox 170 would work. A old 135mm F3.5 Vivitar (Komine) or Ziess Zena work well on a DX sensor, but only give 3.375X. Think you have a Sigma 150mm that might work, this would give 3.75X.

Best,

Mike
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Macrero



Joined: 01 Sep 2011
Posts: 452
Location: Valladolid , Spain

PostPosted: Tue Nov 07, 2017 10:05 am    Post subject: Reply with quote

Robert,

this gonna be very interesting comparison, thanks for taking your time for doing it. There are many lenses/objectives that works very well at around 4X. For instance the Mitu 5 and the tiny JML 21/3.5 would come out very well in this comparison if you include them.

Lol at putting a Plan Fluor objectives in the "Low End " list though Razz

- Macrero
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RobertOToole



Joined: 17 Jan 2013
Posts: 401
Location: United States

PostPosted: Tue Nov 07, 2017 10:20 am    Post subject: Reply with quote

Macrero wrote:
......

Lol at putting a Plan Fluor objectives in the "Low End " list though Razz

- Macrero



It was ranked by price paid, not in image quality, LOL Very Happy I fixed it now.

The 4X PlanAPO finite, new style, almost made it on the low end list also.

Some seller on Ebay had a box of them for sale, 4 units for $500. or one for $150-175. He didn't even know what they were used for Shocked

I almost felt bad buying one due to dodgy origin. I hesitated for awhile, about 5 seconds at least, before I hit buy-it-now! Razz

Who ends up with a box of APO objectives?

BTW, the image circle of the 4X PlanAPO finite, new style, seems to be even smaller than the infinity 4X Plan APO on a quick check.

Robert
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Macrero



Joined: 01 Sep 2011
Posts: 452
Location: Valladolid , Spain

PostPosted: Tue Nov 07, 2017 10:45 am    Post subject: Reply with quote

RobertOToole wrote:


It was ranked by price paid, not in image quality, LOL Very Happy I fixed it now.



Makes sense now Very Happy For our luck, there are many people on eBay who have no idea what they are selling Rolling Eyes Those boxes most likely comes from Factory/Lab surplus, liquidations, Estate sales, etc...

To be fair, Plan Fluor ("semi-apo") objectives should be ranked in an intermediate category between Achro and Apo because of correction and NA.

RobertOToole wrote:


BTW, the image circle of the 4X PlanAPO finite, new style, seems to be even smaller than the infinity 4X Plan APO on a quick check.

Robert


I haven't made direct comparison, but image circle is at least as small as the CF N version, or maybe smaller... Crying or Very sad

- Macrero
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lonepal



Joined: 28 Jan 2017
Posts: 154
Location: Turkey

PostPosted: Mon Nov 20, 2017 5:24 am    Post subject: Reply with quote

Hi Robert!

Any progress on your test?
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Omer
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RobertOToole



Joined: 17 Jan 2013
Posts: 401
Location: United States

PostPosted: Mon Nov 20, 2017 9:07 am    Post subject: Reply with quote

lonepal wrote:
Hi Robert!

Any progress on your test?


Hi Omer,

Yes, all of the parts for the test are here, camera, flash, remote, lenses. I even ran a quick test and that came out great.

I am only waiting for for a machinist friend to finish milling anti-twist notches in the extension tube clamps I am using. I came up with a low-cost set up, using the cheapest parts on Ebay, to support my extension tubes for a set-up that I hope will be rigid like a rock and easily configurable.

I think you will like the new set-up!

All the best,

Robert
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lonepal



Joined: 28 Jan 2017
Posts: 154
Location: Turkey

PostPosted: Mon Nov 20, 2017 11:15 am    Post subject: Reply with quote

Fingers crossed Smile

I am looking forward to see the results!

Bytheway did you include the Lomo 3.7 lens to your comparison list?

Thanks.
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RobertOToole



Joined: 17 Jan 2013
Posts: 401
Location: United States

PostPosted: Mon Nov 20, 2017 11:51 am    Post subject: Reply with quote

lonepal wrote:
Fingers crossed Smile

I am looking forward to see the results!

Bytheway did you include the Lomo 3.7 lens to your comparison list?

Thanks.


On loan from to my friend Zzffnn :-)

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lonepal



Joined: 28 Jan 2017
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PostPosted: Tue Nov 21, 2017 12:59 am    Post subject: Reply with quote

Nice!
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lothman



Joined: 14 Feb 2009
Posts: 286
Location: Stuttgart/Germany

PostPosted: Sun Dec 03, 2017 7:19 am    Post subject: Re: 4X Test - Any Advice? Reply with quote

RobertOToole wrote:
Suggestions, ideas, recommendations?


What about the Zhongyi Optics, Mitakon 20mm f/2 4.5X Super Macro Lens?
http://www.zyoptics.net/product/mitakon-20mm-f2-4-5x-super-macro-lens/

I could provide you a JML 21/3.5
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RobertOToole



Joined: 17 Jan 2013
Posts: 401
Location: United States

PostPosted: Sun Dec 03, 2017 9:56 am    Post subject: Re: 4X Test - Any Advice? Reply with quote

lothman wrote:
RobertOToole wrote:
Suggestions, ideas, recommendations?


What about the Zhongyi Optics, Mitakon 20mm f/2 4.5X Super Macro Lens?
http://www.zyoptics.net/product/mitakon-20mm-f2-4-5x-super-macro-lens/

I could provide you a JML 21/3.5


Hi Lothar,

Super idea but its too late, I already finished shooting and I am now processing the images. Sad

I do have some good news, the Lomo 3,7,thanks to Zzffnn, performed great on an APS-C sensor. The level of CA control was surprising and center sharpness was nice! I was surprised. I am glad I included it.

All the best,

Robert
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lothman



Joined: 14 Feb 2009
Posts: 286
Location: Stuttgart/Germany

PostPosted: Sun Dec 03, 2017 10:12 am    Post subject: Re: 4X Test - Any Advice? Reply with quote

RobertOToole wrote:
Super idea but its too late, I already finished shooting and I am now processing the images.


ahhh just found Tominon lenses 17/4.0 / 35/4.5 and 50/4.5 in my drawers ;-)
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RobertOToole



Joined: 17 Jan 2013
Posts: 401
Location: United States

PostPosted: Sun Dec 03, 2017 10:31 am    Post subject: Re: 4X Test - Any Advice? Reply with quote

lothman wrote:
RobertOToole wrote:
Super idea but its too late, I already finished shooting and I am now processing the images.


ahhh just found Tominon lenses 17/4.0 / 35/4.5 and 50/4.5 in my drawers ;-)


Sounds like me, I found I had three 17s!

The 17 is not a bad performer BTW.

Robert
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ray_parkhurst



Joined: 20 Nov 2010
Posts: 1073
Location: Santa Clara, CA, USA

PostPosted: Sun Dec 03, 2017 11:47 am    Post subject: Reply with quote

I have configured several systems with Tominons. I pick them up when they are in good shape and going cheap, so have a box full of 17's, 35's, 50's, 75's, 105's, and a few 135's. Plus I have a few Rodenstock Eurygon 35's. They're good lenses but have that pesky 40mm Copal thread. Usually it makes sense to make the system ALL MP3/4-based because of this. I even had Raf make me some Vivitar adapters that go from the 48mm dovetail on the Vivitar bellows to M40, to minimize and simplify adapting. It allows the Vivitar bellows to be short enough to frame a Lincoln Cent with the 50mm, which is a fairly nice lens.
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