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Series IV Main Features

*  The Series IV Modular Mount allows you to attach any Series IV mount to the Series IV body module. Whichever way you are attaching your 35mm camera to your scope now, the Series IV focuser will swap in and out perfectly retaining the factory spec film-plane distance.  By simply adding additional mounts, the Series IV  allows you to switch between formats and/or cameras on the fly.    The whole concept of the Series IV is  interchangeability.  In practical terms this means the Series IV can grow as you grow, and will never become obsolete as you move from 35mm photography  to CCD, or even beyond.  You get the best focusing for analog photography and digital photography in one product !

              

*  Interchangeable "Stiletto" Assemblies  with ronchi screens.  A resolution of 180 lines per inch is the standard shipped with the Series IV unit.   Our high-resolution 300 line/inch Black Chrome screen is available on our Deluxe and Pro Edition models.  If other resolutions  are desired,  several optional screens can be snapped in or snapped out in a jiffy with no recalibration necessary. Our 'True Knife' optional grating was designed with the perfectionist in mind and is a true knife-edge assembly that is interchangeable with the ronchi screens.  See our Accessories section for more information.  Click here for instructions on how to change screens quickly. Click here for a tutorial on knife edge focusing with the True Knife.

          CCD Stiletto                     35mm Camera Bayonet                 Interchangeable Ronchi Screen Resolutions 

Note: One CCD Stiletto Assembly or one 35mm Camera Bayonet comes  standard with the Series IV unit.  You specify what type and brand of camera.

*  Adjustable Helical Focusing Assemblies  are standard in the Stiletto assembly and permit the photographer to tweak the focuser for use with his specific camera.  Although the assemblies are shipped pre-calibrated to the factory specification for your camera , helical focusing  permits you to match the film plane distance of your specific camera to the focuser with a simple turn of the ronchi focusing tube.  In short, you can tweak your focus to your particular satisfaction and, depending on what photo accessories and f/ratio you might be using, this is a definite plus! Check out the details of the Stiletto assembly here.

 

*  Swivel Mounted and Collimateable Magnifying Diagonal Assembly for more comfortable viewing and perfect centering and focusing.  Adjustable through 360 degrees for comfortable positioning with the turn of your wrist.  A magnifying transfer lens in the diagonal produces a large, visible starlight pattern on the ronchi screen.  Includes a high quality 25mm plossl eyepiece which is parfocal to the film plane.  The diagonal mirror may be easily collimated to achieve perfect centering or placement as you prefer.  

   

* Solid Construction Materials are used throughout.  The body is manufactured of die-cast aluminum with a strong black wrinkle powder coat finish.  The camera bayonet assemblies are black anodized aluminum.  The Series IV weighs approximately 360 grams.  Its size and weight are comparable to an average 35mm camera. Little or no rebalancing of telescope tube assemblies is normally required.  Click here to see how we manufacture the Series IV.

* Attachment to Your Existing T-Ring is easy and guarantees perfect focus each time, every time!  The Series IV attaches to your telescope the same way your camera does now using the same adapters.    The Series IV is just like your camera, except that its only function is to achieve perfect focus quickly and easily.  You swap seamlessly between focuser and camera in seconds!

*  Better than BrightScreens and Magnifiers because the Series IV takes the weakness of your eyesight out of the focusing equation altogether.  Instead of trying to focus on a pinpoint image, you focus on a bright pattern of light with highly visible bars.  You simply focus until the bars disappear and you are done.  There are never any misgivings or uncertainties as with other astrofocusers.  Take a look at the photos in our Gallery for the proof!  Click here to see how the Series IV compares to other focusing approaches.  You'll be surprised!

* Compatible with All 35mm Films so that there is no need for recalibration  when trying out different films. Once in focus, the Series IV is always in focus since the Stiletto assembly is always at the proper film-plane distance.

* Technical Support you can count on through our website, email,  product instructions on cdrom, and 800 number.. We want you to take successful photos with the Series IV.  Proof is always in the pudding!

* Satisfaction Guaranteed with a one-year parts warranty and a 30-day money-back Clear-Sky guarantee. (15% restocking fee after 30 days to thwart deadheads).  Free recalibration at any time if you goof something up (customer pays shipping only)!

             

              35mm                           CCD                                               Medium Format