DZOFILM CINE Gnosis Macro Prime Lens User Manual

: June 9, 2024
: DZOFILM

Table of Contents

CINE Gnosis Macro Prime Lens
Introduction
Safety Notes
Lens Parts
Lens Control
Preparation
Flange Back Adjustment
Speciﬁcation
After-sales Service
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GNOSIS MACRO PRIME LENS
USER’S MANUAL

CINE Gnosis Macro Prime Lens

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Introduction

Thank you for purchasing this product!
Gnosis is DZOFILM’s high-performance full frame cinema prime macro lens. It allows you to reproduce the details and color in ﬁlming. Clear images, natural transition from in-focus to defocus and minimal breathing in focusing…all these can be found in Gnosis. They are suitable for different macro creation and can adapt to a wider range of subjects such as ﬂowers and insects, bringing audience with pure and vivid image texture and natural transition of focus shifting. Precisely control and shift the focus with a 300 degree rotation to get a stable and comfortable performance. The industry standard front diameter of 114mm is compatible with matte boxes and other accessories, eliminating the need for repeated adjustments when changing lenses and greatly enhancing shooting efﬁciency.

Safety Notes

Please do not watch the sun or bright light source through the lens, otherwise it will cause visually disabled；
Never use organic solvents such as paint thinner or benzene to clean the lens；
Attach the front and rear caps when the lens is not in use；
Store the lens and ﬁlter in cool, dry locations to prevent mold and rust.
Do not store in direct sunlight or with naphtha or camphor moth balls；
Please keep the lens dry and wipe the water droplets off if there are water droplets on the glass surface；
Leaving the lens near heater or in other extremely hot locations could cause damage or warping；
Use a blower to remove dust and lint from the glass surfaces of the lens or ﬁlter. To remove smudges and ﬁngerprints, apply a small amount of lens cleaner to a soft, clean cotton cloth or lens-cleaning tissue and clean from the center outwards using a circular motion. Do not leave smears or touch the glass with your ﬁnger.

Lens Parts

Front Cap
Lens Mark
Focusing Ring
Holes for Supporting Base1
(M3/8-16 thread，9mm deep)
Mounting holes 2
(M3,3mm deep)
Aperture Ring
Rear Cap
Magniﬁcation Ratio、
Exposure Compensation
Identiﬁcation

DZOFILM CINE Gnosis Macro Prime Lens - fig

Lens Control

Focus Control
Rotate the focus ring to increase or decrease the focus distance.

Aperture Control
Rotate the aperture ring to stop aperture down, raising the T-stop and narrowing the aperture, or lower the T-stop to widen the aperture.

Magniﬁcation Ratio 、Exposure Compensation Identiﬁcation
Magniﬁcation Ratio: the magniﬁcation ratio under ongoing focusing distance.
Exposure Compensation: the difference between actual T value and the directing T value on aperture ring. When the Exposure compensation identiﬁcation is 4.18, Actual T Value=T Value showing on the aperture ring+4.18.
Magniﬁcation Ratio、
Exposure Compensation Identiﬁcation

Flange Back Adjustment

Every Gnosis lens will process ﬂange back adjustment on standard.
But due to the tolerance of different cameras, to achieve the best performance of this product and to match the cameras, please adjust ﬂange back of the product.

Preparation

Take Gnosis 32mm as an example:
Step One : Ready your subject and calibration tool. You can use a “Star Chart”, or other high-resolution black-and-white objects;download the “Back focus Calibration Tool for Prime Lens”(short for “Calibration Tool”) on the ofﬁcial website.
Note : You can download and print the chart on DZOFILM website-Download- Star Chart for Adjusting Back Flange（Click to jump to the website）
Step Two : Attach the lens to the camera and adjust the aperture to T4;
Step Three : Make the pointer align with the 0.33m scale on focusing ring, paste calibration tool on the ring with middle line of the tool aligning the 0.33m scale and the scale pointer (or choose 1’1 focusing scale).

DZOFILM CINE Gnosis Macro Prime Lens - fig 4

Step Four : Set the object 0.33m away from the camera sensor plane, and adjust it to the center of the whole image.

DZOFILM CINE Gnosis Macro Prime Lens - fig 5

Set the object 0.33m away from the camera sensor plane, and adjust it to the center of the whole image.

Flange Back Adjustment

Please adjust as the following steps:
Step One : Rotate the focus ring until the image to its clearest. Take the horizontal line in the middle of the calibration tool as the reference and observe the position of the deviating scale pointer to get the number of horizontal lines.
Note: The direction of inﬁnity indicates positive deviation value.
The direction of the closest focusing distance indicates negative deviation value.
If there are more than three horizontal lines, add or subtract the corresponding value.
Example: I f the scale pointer points to 3 spaces in the direction of the closest focusing distance, the deviation value is -3.
If the scale pointer points to 4 spaces in the direction of inﬁnity, the deviation value is +4. At this situation, the shim value of “+3” needs to be added to the shim value of “+1”.
Step Two : According to the deviation value and the reference below, add or subtract the corresponding shim to complete the ﬂange back adjustment.

Gnosis Adjustment Reference

direction| direction of the closest focusing distance| | direction of infinity
focal length| mark value| deviation value| -3| -2| -1| 0| -F1| +2| +3
32mm| 0.33m/11| shim adjustment reference
(mm)| -1.| -1.| 0.| 0| -F00,0.| +0.41| +0.65
65mm| 0.32m/12.6″| -2.| -1.| -1.| 0| -F00,1.| +1.1| +1.7
90mm| 0.291m/1| -2.| -1.| -1.| 0| +0.72| +1.48| -F00,2.

Note: Shim adjustment: “+” means adding shims, and “-” decreasing shims.

Speciﬁcation

Name	Gnosis
Colour	Black
Focal Length	32mm
Mount	LPL/PL/EF
Aperture	T2.8-T22
Image Circle	# 46.5mm(VV/FF)
Construction of Optics	11 Elements in 9 Groups

After-sales Service

How to Obtain After-Sales Service
If a product does not function as warranted during the warranty period, you may obtain after-sales service by contacting DZOFILM support team or DZOFILM’s authorized dealers.Charges may apply for services not covered by this After- Sales Policy. The After-Sales Policy varies with the country or region of purchase. Please contact DZOFILM for information speciﬁc to your location.
Warranty Service
DZOFILM grants a minimum warranty period of one year from the date of purchase for lenses purchased through DZOFILM’s ofﬁcial dealers. DZOFILM warrants that each DZOFILM product that you purchase will be free from material and workmanship defects under normal use in accordance with DZOFILM’s user manual and accompanying documentation during the warranty period. You may claim warranty service by returning it to the point of purchase. The owner is responsible for all shipping costs. The warranty period varies with the country or region of purchase. Stored dated receipts or other proof of purchase in a safe place, as you will need to provide a valid proof-of- purchase or receipt for the warranty service. Parts replaced during the warranty service become DZOFILM’s property.
Service Outside the Warranty Period
Request for after-sales service will normally be accepted within a period of roughly 5 years following the end of production, during which time spares will be kept on hand, although owners may be offered an equivalent product during this period in the event that spares are not available. The speciﬁc cost standard is subject to DZOFILM’s quotation. Compatibility with consumables and accessories for the original product is not guaranteed. To prevent waste, DZOFILM may collect returned parts or products.
Service Turn Around Time
After we receive the product, the after-sales service will generally be completed within two weeks. This turn around time does not include the time of return shipping. If there are special circumstances, we will notify you in advance.
What This After-Sales Policy Does NOT Cover
This after-sales policy does not cover the following and charges may apply:
× No valid proof-of-purchase or receipt of the product;
× Damage caused by unauthorized modiﬁcation, disassembly, or repair not in accordance with ofﬁcial instructions or manuals.
× Damage caused by improper installation and operation not in accordance with ofﬁcial instructions or manuals.
× Damage caused by the storage environment not in accordance with ofﬁcial instructions or manuals.
× Damage caused by operation in bad weather or environment (i.e. rain, sand/dust storms, humid environment, etc.).
× Damage caused by, any third party products, including those that DZOFILM may provide or integrate into the DZOFILM product at your request.
× Damage caused by any third-party product.
× Damage caused by force majeure;
× Consumable accessories and optional parts that come with this product.
Privacy
DZOFILM obeys all applicable laws and regulations concerning the handling of names, addresses, phone numbers, and other personal information provided by users.
The Name and Content of Hazardous Substances

Part Name	Hazardous Substances
Pb	Hg
Lens Shell	0
Inner Mechanics	X
Optics	0
Other Parts	0

This table is formulated in accordance of SJ/T11364.
○: Indicates that the concentration of the hazardous substance in all homogeneous materials in the parts is below the relevant threshold of the GB/T26572 standard.
×: Indicates that the concentration of the hazardous substance of at least one of all homogeneous materials in the parts may be above the relevant threshold of the GB/T26572 standard.
The “×” in the above table indicates that there are one or more exemptions are applied in the parts stated in RoHS (2011/65/EU).
Shenzhen Dongzheng Optical Technology Co., Ltd.
Floor 6, Building One, Xinwuxia Industrial Area, No.32, Cuibao Rd.,
Baolong St., Longgang Dist., Shenzhen 518000, China ****www.dzoﬁlm.com

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