Ricoh Original Lens 308934 Standard Zoom #1 (Long Throw): Compatible with 3 Models and Throw Ratio

The Ricoh 308934 Standard Zoom #1 is the original (OEM) lens for Ricoh installation projectors. It is a Long Throw lens with a throw ratio of 1.50-3.00:1. This article compiles its 3 compatible projector models, optical specifications, and purchasing considerations for quick compatibility verification by projector model.

Specifications

The above specifications are sourced from OEM documentation and the Zorsika product database; a full technical datasheet is available upon request from our sales team.

308934 Standard Zoom #1 Compatible Projector Models (3 Models with Brightness/Resolution)

The following are verified compatible projector models for the 308934 Standard Zoom #1, each with brightness and resolution; the applicable lens model for all is 308934 Standard Zoom #1:

Note: Brightness/resolution is taken from the model database (refer to the unit's nameplate/manual for accuracy); lens compatibility is determined by the projector's lens mount and panel/chip size. For models not listed, please contact Zorsika technical support for confirmation.

About This Original Lens

Ricoh 308934 Standard Zoom #1 Lens

The 308934 Standard Zoom #1 is a Long Throw lens manufactured by Ricoh as an OEM product. Its optical structure, lens coatings, and body tolerances are all matched to the original machine's standards, ensuring plug-and-play installation and stable imaging. For installation environments with restricted projection distances (e.g., short-distance large images, wall-mounted ultra-short throw), choosing the right throw ratio is more critical than opting for a generic lens.

This lens has a throw ratio of 1.50-3.00:1. Throw ratio = projection distance ÷ image width: a smaller value produces a larger image (suitable for short distances in small spaces), while a larger value requires a greater installation distance. Work backward from your on-site installation distance and screen size to determine the required throw ratio range, then match it to this model.

Genuine Product and Purchasing Information

Zorsika supplies the genuine Ricoh original lens 308934 Standard Zoom #1 through authorized channels, complete with original packaging and traceable serial numbers, suitable for bulk procurement and project supply in installation projectors, conference rooms, classrooms, and similar settings.

• Genuine Product Guarantee: Sourced through official OEM channels, with original packaging and serial numbers; for bulk projects, channel documentation can be requested to eliminate refurbished units and unverified sources.
• Compatibility Verification: Provide the projector model before ordering, and Zorsika technical support will cross-check against the compatible model list above to ensure a proper fit.
• Project Supply: The 308934 Standard Zoom #1 covers 3 projector models; common projects can be scheduled in advance to shorten lead times.
• Alternative Options: If budget is a concern, Zorsika also offers equivalent replacement lenses with key parameters matched to the OEM standard, allowing you to choose based on your needs.

Note: Actual imaging performance is affected by the projector's condition and installation environment; for large orders, it is recommended to test 1 unit first.

FAQ

Q: How do I choose between an original lens and a replacement lens?

A: The original lens is manufactured by Ricoh, with optical parameters and body tolerances calibrated to the original machine, making it ideal for projects with strict requirements for OEM consistency; Zorsika replacement lenses are independently designed and manufactured to the same specifications, with throw ratio, image circle, and mount matched to the original machine, offering advantages in budget and lead time. Zorsika can supply both options—choose based on your project requirements.

Q: How do I confirm this lens works with my projector?

A: Verify based on the projector's lens mount and panel/chip size; this article lists verified compatible models. Projectors from the same generation and brand often share mounts—if unsure, photograph the unit's nameplate and send it to Zorsika technical support for confirmation.

Q: How do I choose the throw ratio?

A: Throw ratio = projection distance ÷ image width. A smaller value produces a larger image (short throw/ultra-short throw suits close-range small spaces), while a larger value requires a greater installation distance. Work backward from your installation distance and screen size to determine the required throw ratio range, then match it to this model's focal length range.

Q: How can I ensure the 308934 Standard Zoom #1 is genuine?

A: Zorsika supplies genuine products through OEM channels, with original packaging and traceable serial numbers; for bulk projects, channel documentation can be requested to ensure the lens is not refurbished or a used disassembled unit.

Q: What should I pay attention to when replacing the lens?

A: Before disassembly, ensure the projector is powered off and the cooling fan has stopped; hold the lens barrel without touching the glass, use a blower for dust; after installation, focus-test before tightening the locking screws, and clean the mount and contacts as you go.

Related Inquiry Links

• Zorsika Technical Support Center
• Projector Brand and Compatible Model Lookup
• Projector Lamp / Lens / Air Filter Product Library

Purchasing Consultation

For consultation on the Ricoh original lens 308934 Standard Zoom #1, project proposals, or a complete compatible model list, please contact us through the following channels:

• Website: www.zorsika.com
• Phone: 0086-20-38551187
• Email: sales@zorsika.com
• Business Hours: Monday to Friday, 9:00-18:00

The lens model and compatible projector data in this article are sourced from OEM documentation and the Zorsika product database; data is continuously updated and subject to confirmation at the time of inquiry.