Argus Camera ARGUS A2 manual Intentional Lens Aberrations, Modifications Most Common Modification

Page 58

shallow depth of field, make for interesting effects. Cityscapes can be made with the first exposure during the day and the second at night. While some of these effects require computation to determine the proper exposure times and apertures, they offer some truly unique approaches to picture taking.

Other creative applications of the double exposure exist and are worth exploring.

Intentional Lens Aberrations

As mentioned in Chapter 7, the Middle Lens of the pre-war Shutters can be removed for cleaning.

If this lens is turned around before it is replaced, it will distort the image on the negative. This distortion, which smears the image away from the center of the image, is similar to a coma aberration and can be manipulated by changing factors such as focus and aperture size. The overall effect of the distortion is that of motion in the axis of the lens. In simple terms, the outside edges of your photographs will be blurred.

Technically, there is supposed to be a slight bevel on the Middle Lens to indicate direction. When properly installed, the beveled lens edge is on the side facing the Inside Lens. In practice, however, this bevel is often too small to be seen or not present at all. The only sure way to know if your lens is installed properly is to take some test pictures.

Modifications

The Most Common Modification

The most common Argus modification is the “fake” A2F. This involves taking the Neck and Shutter of an AF and putting them on the Body of an A2B. Four simple screws and you’re done. Incidentally, this does not make the camera any more or less valuable.

This bastard camera combines the variable focusing of the AF with the Extinction Meter of the A2B. It is a worthwhile modification as long as you intend to switch them back.

Modifying Old Filters

Often, when trying to acquire a complete set of Argus filters, one comes across extra filters. Whether they are extras of ones already found or simply damaged beyond use, they can still be utilized.

The simplest use of an old filter is converting it to a lens cap. Simply paint the lens or filter portion with flat black paint. Ensure that it is light tight so that your cap will protect against accidental exposure.

Another use is as an adapter for a filter holder, such as the Series V Adapter. As mentioned earlier, the Series V Adapter fits only on the post-war A2B and the FA, but an old Argus filter can be used to adapt it to a pre-war model. Simply force out the filtering element by pushing it from the objective side, not the side that will slip onto the Lens Assembly. The filtering element and its retaining ring should pop out; keep these somewhere safe so that you can restore them if necessary. Then wrap the outer rim of the objective side of the filter with tape until the Series V Adapter fits on it snugly. Now you will be able to use that Series V Adapter, and all of the various Series V filters, with a pre-war Argus.

Download this book for free at http://www.TheArgusA.com/

58

Image 58
Contents Page Page Preface Page Table of Contents Why the Argus A/A2 Camera? May History Page Page Page October Models And Variations Argus a Lens Speed f/4.5Lens Speed f/4.5 Aperture Settings f/4.5, 5.6, 8 Argus AFArgus B Extinction Meter/Calculator No Flash Synch Tubes NoPre-War Argus A2B Argus A2F Argus AA Lens Speed f/6.3Post-War Argus A2B Years Manufactured ~1945Argus FA March Aperture Indicator A, AF, A2Bs, & A2F Parts Of The CameraShutter Plunger pre-war A2B & A2F Sprocket Wheels Winding Shaft User’s Guide Loading The CameraTaking Pictures Page Using The Sunny/16 Rule Rewinding Finished FilmUsing The Light Meter/Exposure Calculator A2B and A2F ISOStop Shutter SpeedFilm Speed Read Shutter Speed from the block Stop Settings And Spacing Holding The Camera Upside DownLens Attachments AccessoriesLens Shade Yellow Filter Portrait Attachment NoCopying Attachment No Lens CapLens Accessory Kit for Argus AF Lens Accessory CaseLens Accessory Kit Red FilterSoft Suede Zipper Bag Black Leather Zipper CaseDe Luxe Black Leather Case Other Accessories Carrying Case Safety ScrewLight Meter Cable Release Mechanical Self-TimerVintage Book On Photography Small TripodNew Lens Cap A Lens Cap in various stages of productionHand-Held Or Accessory-Shoe Mounted Rangefinder Flash GunsFilm Transport Mechanism Restoration And RepairCamera Body Film Advance KnobView Finder Counter DialSprocket Wheels Back CoverExtinction Meter Flash MechanismNeck Light-Proof RibbonNeck You Can’t Fix Variable Focus Neck Two-Position Focus NeckSeparating The Neck From The Shutter Homemade adjustable shutter removal tool Shutter Cleaning The Lens Shutter MechanismPre-War Shutter Pre-war Shutter Face Plates Pre-war Shutter with the Face Plate removed Post-War Shutter Post-war Shutter with the Face Plate removed Fixing The Iris And Other Repairs Argus AA ShutterFinding Light Leaks Page Tricks Using Ground Glass Tricks And ModificationsTaking Close-Up Pictures Double ExposuresModifications Most Common Modification Intentional Lens AberrationsModifying Old Filters Pinhole Argus Optimum hole specifications for various shutter positions Special Effects For The Proletariat Page Closer Two-Position Focus Adding a Cold Accessory Shoe Finding An Argus In Good Shape 60 Second Camera EvaluationFinding An Argus Online For More Information Appendix a Argus a Patent Page Page Page Page Advertisements Appendix B Bibliography and ReferencesOther