8mm Forum: New scan: Pathé Webo DS8 all French Manuals + 1966 accessory etc. pricelists

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Posted by Werner Ruotsalainen (Member # 6217) on February 19, 2019, 02:23 PM:

I've recently purchased, along with a Canon DS8, two Pathé Webo DS8 cameras + at least one 8-64. (And plan to get a much better C-mount lens when I can afford it.)

One of the Pathé cameras came with full manuals and even pricelists from 1966. The latter doesn't require knowledge of French.

For example, this model with the 8-64/f1.9 cost (see https://www.flickr.com/photos/33448355@N07/40184019433/in/album-72157689832972833/ ) 3828,85 francs (based on http://fxtop.com/en/currency-converter-past.php?A=3828.85&C1=FRF&C2=USD&DD=05&MM=06&YYYY=1966&B=1&P=&I=1&btnOK=Go%21 ); that is, about 781 USD (in 1966), which is about 5900 USD in today's money (based on http://www.in2013dollars.com/1966-dollars-in-2017 ).

The "kit zoom" 8-64/f1.9 cost (see https://www.flickr.com/photos/33448355@N07/40184017753/in/album-72157689832972833/ ) 840,85 FRF, that is, 1292 USD in 2017.

Full album: https://www.flickr.com/photos/33448355@N07/albums/72157689832972833

Posted by Paul Adsett (Member # 25) on February 19, 2019, 03:51 PM:

What a fabulous camera!

Posted by David Michael Leugers (Member # 166) on February 21, 2019, 02:34 PM:

I think before the computerized manufacturing of lenses came into normal practice, lenses of the same type from the same manufacturer could have noticeable differences in image qualities. Some examples were just better than others. I have heard good and less than enthusiastic remarks about the Angenieux 8-64 zoom lens. I have one that I am very happy with. I hope when you shoot with yours you will have the results you are looking for.

Posted by Werner Ruotsalainen (Member # 6217) on February 23, 2019, 04:51 PM:

quote:
I have heard good and less than enthusiastic remarks about the Angenieux 8-64 zoom lens. I have one that I am very happy with.

Thanks. Mine seems to be OK too. I've just finished evaluating my lens test (shot at three different focal lengths (fully zoomed in & out and at 30mm) and all marked apertures - that is, 1.9, 2.8, 4, 5.6, 8, 11, 16 and 22).

Turns out the lens definitely delivers better resolution than that of the FOMA R100 at all apertures and focal ranges except:

- zooming out results in pretty soft images with wider apertures. (See the images titled "Angenieux_8-64_no-zoom_aperturevalue" in the dedicated album HERE ) It only becomes adequate at around f/5.6.

- at all focal lengths, f/1.9 delivers definitely more blooming / less contrasty / (somewhat) less sharp images than even 2.8. (And, again, when completely zooming out, even f/4 is better be avoided.)

Test setup: LINK

For comparison, here's a shot with the Fuji 27mm on the same Fuji X-E1 camera: LINK . As one can see, the 30mm test shots of the 8-64 aren't significantly worse than the very center of the photos made with this lens. I've certainly seen MUCH worse C-mount lenses before (of course, costing much less than the 8-64).

Note that I had to use the APS-C Fuji X-E1 camera for testing as I still haven't received my C adapter for my 1/1.7" Pentax Q7. (I only have a D adapter for it ATM so that I'm able to test Std8mm lens.)

[ February 23, 2019, 11:56 PM: Message edited by: Werner Ruotsalainen ]

Posted by Werner Ruotsalainen (Member # 6217) on February 24, 2019, 01:34 AM:

I’ve also tested the 2/3” eneo 12,5-75mm f/1.6, C Mount, Model nr. 40860 lens with the same focal length settings (fully zoomed out, zoomed in and at 30mm and all (except for 22) marked apertures: 1.6, 2.8, 4, 5.6, 8, 11, 16). Purchased the lens off eBay for 40eur total; THIS is the only info (leaflet) I could find on it.

The full Flickr album is HERE with the same naming convention: the last part of the image names contain the focal length first and, then, the aperture.

The lens is pretty mediocre:

1, at full zoom: excessive bloom at 1.6 and still some at 2.8. Softer at 1.6 (not THAT bad - still better than fully zoomed out)

2, 30mm: still has Chromatic Aberration (CA) under 5.6. However, only 1.6 is soft; 2.8 is already OK WRT sharpness.

3, no zoom - pretty soft under 5.6, particularly 1.6 and 2.8; 1.6 is pretty CA’ed in addition.

Posted by Dominique De Bast (Member # 3798) on February 24, 2019, 02:29 AM:

I read in a French Book that to get the best of a camera zoom, you should (when possible) two stops above the smallest figure), so for example if the smallest is 1.8, the best picture is supposed to be achieved at 4. If the smallest is 2.8, the best is at 5.6 and so on. Did you notice that as well or is it just a theory ?

Posted by Werner Ruotsalainen (Member # 6217) on February 24, 2019, 04:09 AM:

quote:
I read in a French Book that to get the best of a camera zoom, you should (when possible) two stops above the smallest figure), so for example if the smallest is 1.8, the best picture is supposed to be achieved at 4. If the smallest is 2.8, the best is at 5.6 and so on. Did you notice that as well or is it just a theory ?

Yup, it's the best to avoid the widest aperture setting (1.9 / 1.6 with the 80-64 and 12.5-75, respectively) on both zooms at every focal length. Stopped down with more than one stop (with the 6-80, slightly; with the security lens, with more than 1.5 stops), to 2.8, dramatically

- reduces blooming
- reduces CA
- increases contrast
- increases sharpness

Both zooms behave the worst in their widest focal length. Then, stopping down with even 3 or 4 stops, to around f/5.6, becomes necessary to achieve good image quality.

I'm more than interested in how the 6-90 1.2 behaves. (Will purchase it next.) Many consider it the Holy Grail of S8 C-mount zooms.

Posted by Werner Ruotsalainen (Member # 6217) on February 27, 2019, 12:46 PM:

I've just scanned the English manual too: see THIS.

Posted by Luigi Castellitto (Member # 3759) on March 23, 2019, 05:35 PM:

Great, Werner!
I have a beautiful Pathé Webo DS8 BTL.
I had the English manual, but not this French.
Thank you.

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