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With a 20MP stacked BSI Live MOS sensor, TruePic X processor, and a dedicated infrared cut filter tuned for Hα transmission, the OM SYSTEM OM-3 ASTRO is a specialist astrophotography variant of the OM-3.
With a 20MP stacked BSI Live MOS sensor, TruePic X processor, and a dedicated infrared cut filter tuned for Hα transmission, the OM SYSTEM OM-3 ASTRO is a specialist astrophotography variant of the OM-3.
Olympus / OM System

OM SYSTEM OM-3 ASTRO Digital Camera Body

£1,899.00
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Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Website Returns

Subject to the right of consumers to return goods for refund under the Consumer Contracts Regulations 2013 and the Consumer Rights Act 2015, SRS Microsystems Ltd does not sell products on a trial basis. Customers are strongly advised to check suitability and specifications of products before ordering.

We offer customers the opportunity to return goods up to 14 days after receipt (“the Returns Period”), subject to the terms and conditions in this returns policy.

You must prior to returning any goods received, contact our customer support team or by completing our online form to obtain an RMA number. Failure to contact us in respect of a return or cancellation in line with one of the methods set out above will result in a delay in processing your refund or the product being returned to you. All authorised returns must be returned to Returns Department, SRS Microsystems Ltd, Unit 1, Chess Business Park, Moor Road, Chesham HP5 1SD

If you exercise your right to cancel your order after the goods have been despatched, you will be responsible for returning the goods to SRS Microsystems Ltd (within 14 days of notifying us) at your own risk and cost, therefore we strongly recommend you use an insured delivery method, such as Royal Mail Special Delivery. For items which cannot ordinarily be returned by post, we will at your request use our reasonable endeavours to arrange a courier to collect the goods; the estimated maximum cost of this would be £15 per item. (See below in relation to the return of faulty goods.)

All returns are subject to the following conditions, except where the goods are faulty or incorrectly described on the Web Site.
  • Your item is complete and in 'as new' saleable condition:
  • If you have opened the box to examine the product you must have done so without damaging or marking the product or packaging
  • You haven't used the item
  • The item contains no personal data and hasn't been registered to a user
  • The item must be returned within 14 days of you requesting to return it.
  • While you have to pay to return the goods, we will refund the standard delivery cost of getting the goods to you in the first place (if you paid for delivery). If you opted for an enhanced service e.g before 9am, we will only refund the standard delivery cost.
  • Any use of the product is relative to examining it, and ensuring it suits your needs. The extent to which you can handle the goods is the same as it would be if you were assessing them in a shop. SRS Microsystems Ltd does not sell products on a trial basis.
  • A deduction can be made if the value of the goods has been reduced as a result of you handling the goods more than was necessary. We may refuse the return of items without the original packaging or where it has been returned in poor condition.
  • Software, memory cards and DVDs can only be accepted if still sealed. This policy is to avoid any potential breach of the Copyright, Designs and Patents Act (CDPA) 1988. All opened software is exempt from return under the terms of the Consumer Contracts Regulations 2013. Software that arrives damaged or is physically faulty may be returned under our normal returns policy.
  • It is returned with the original box, packing and any accessories you received with it.
  • A proof of purchase must be supplied.
  • You also return any free gifts which came with the product, which also must be in their original packaging and in a saleable condition
  • We will not refund any items that have been specially ordered to your individual specification or personalised.
  • The item has not had any cashback claimed (if applicable)
  • Any free gift dependant on purchase must be returned with the original item.
  • Gift Vouchers are not eligible for exchange or refund
Until such time as you return the goods to us you must take reasonable care of the item(s). Any use of or damage to the delivered goods or product packaging beyond that necessary to inspect the goods upon delivery may result in you incurring a restocking charge to cover the loss that we might reasonably expect to incur in reselling the item(s). We may refuse the return of items without the original packaging or where it has been returned in poor condition.

Subject to the above, if you exercise your right to cancel your order within 14 days (where the goods are not found to be faulty), we will reimburse to you all payments received from you, including the costs of delivery (except for the supplementary costs arising if you chose a type of delivery other than the least expensive type of standard delivery offered by us).

Faulty goods: For faulty goods we offer the following terms:
  • You will always have the option of an exchange or refund if the fault occurs within 30 days of delivery.
  • If the fault has occurred within the first six months after delivery but after the first 30 days, you can ask us to repair or replace faulty goods. However, we can, choose the solution that is more proportionate or practical for us. In the majority of cases, we will send an item for repair in the first instance. If the repair is unsuccessful, you can then claim a replacement or a full refund. Alternatively we will seek to agree a price reduction with you if you wish to keep the product.
  • After six months, unless you can demonstrate that the fault was present at the time of original delivery or we have previously arranged a repair and this has failed to resolve the fault, our liability will be limited to providing you with reasonable support to make a claim under the manufacturer’s warranty, where applicable.
In all cases we reserve the right to inspect the product and verify the fault and, if no fault is found, return the product to you. In these circumstances, no refund will be processed until the returned goods have been received by us and an appraisal made as to any fault. This promise does not cover faults caused by accident, neglect, misuse or normal wear and tear.

Any refund due to a fault or other defect will include a refund of the delivery charge. In such circumstances we will also pay for your costs of returning the goods (up to £10 in the UK and £20 outside the UK). Beyond six months you will be responsible for covering the costs of returning the goods (unless you have been able to establish that the goods were defective at the time of original delivery, in which case we will reimburse your costs as set out above). We strongly recommend you use an insured method such as Royal Mail Special Delivery. Replacement goods are sent by standard delivery only (i.e. premium services are not available).

Refunds will be processed within 14 days of receipt of the returned products.

This returns policy does not affect your statutory rights. Details of your statutory rights are available from the citizens advice bureau or consumer direct.

In-Store Returns

Under the Consumer Rights Act 2015, you (the customer) may be entitled to a refund, replacement or repair where goods are faulty or not as described. In other cases, for example, where you, the consumer have changed your mind, or an item is an unwanted gift; there is normally no automatic right to return goods.

However, SRS Microsystems Ltd offers a 14-day exchange for most products (see exclusions below*). All items considered for a credit note, re-stock or exchange must be returned "as new" unused and unopened condition, free of visible marks, scratches or defects, not registered with the manufacturer (and/or cashback or free gifts claimed from the manufacturer) complete with all intact packaging materials/box and your original receipt. This does not affect your legal rights, including your right to claim a refund, replacement or repair where the goods are faulty or misdescribed.

If the item purchased is used (second-hand), you may return the item for a full credit or exchange for any reason within 14 days of the purchase date as long as returned in the same condition as was supplied and is accompanied by the purchase receipt.

Items that have been opened are subject to a re-stocking fee. After 14 days all merchandise is considered used and may beconsidered for trade-in purpose only.

All returns are subject to inspection and return approval by a manager.

We reserve the right to charge for missing or damaged merchandise and parts. If we determine that an item is returnable but does not meet all our guidelines, we reserve the right to charge a restocking fee. The fee charged may vary according to the items condition, the state of the item's packaging and the item value. The minimum restocking fee is usually 10% and this is based upon the till receipt purchase price of the item only and does not cover any transport costs.

Upon approval of a return the following conditions must be met prior to a credit, re-stock or exchange:
  • The item must be accompanied by the original receipt (not a copy).
  • The total will be refunded in the fashion it was paid (credit card, debit, etc.).
  • If any refund is given by credit card or debit, the original cardholder must be present.
We reserve the right to refund cash purchases by cheque or gift voucher.

*We do not accept the following for refund or exchange:
  • Gift vouchers.
  • Software (if seal is broken).
  • Memory Cards.
  • Film.
  • Chemistry.
  • Batteries.
  • Bulbs.
  • Paper.
  • Non-stocked special order items.
Returned Goods (after 14 days)

SRS Microsystems will not accept goods for credit or rectification unless such return has been authorised by SRS Microsystems, and the goods are received by SRS Microsystems in stock condition with the original packaging. To obtain authorisation please contact us on 01923 226602 or by email:
[email protected]. SRS Microsystems retain the right at our sole discretion whether to accept the return of the goods, or whether to rectify the goods or whether to issue a credit note in respect thereof.

SRS Microsystems reserves the right to charge a restocking fee on goods returned for credit that are not in stock condition. The stock condition would be described as the product being in new condition with all software and product seals intact, not damaged or marked in any way, supplied with all the original accessories and packing and not registered for warranty, cashback or any free gifts claimed from the manufacturer. The purchaser shall unless otherwise stated be responsible for the cost of outward and return carriage and insurance of all goods returned by the purchaser to SRS Microsystems for service or credit.

Goods shall be at the risk of the purchaser until actual receipt of the goods by SRS Microsystems. The onus of proof of safe delivery shall rest with the purchaser.

All returned items must contain a copy of the original receipt and a returns form. All items returned to SRS Microsystems by pre-arrangement and found to contain no fault, will be subject to up to 25% restocking charge (for goods returned outside the 14-day cooling-off period), providing the goods are in original stock condition. Any downward variation of this restocking charge shall be at the sole discretion of SRS Microsystems. No credit shall beallowed for goods until they have been received complete.

OM SYSTEM OM-3 ASTRO Digital Camera Body

Season:New

Brand:Olympus / OM System

Code:V7921300W000

With a 20MP stacked BSI Live MOS sensor, TruePic X processor, and a dedicated infrared cut filter tuned for Hα transmission, the OM SYSTEM OM-3 ASTRO is a specialist astrophotography variant of the OM-3.

The revised IR-cut filter increases Hα transmission to enable vivid red nebula capture, while computational High Res Shot stacking and Starry Sky AF functions support high-resolution, low-noise night-sky imaging. A sealed metal body and 5-axis stabilisation support extended outdoor use.

  • Astrophotography-focused OM-3 variant with Hα-optimised IR-cut filter
  • Enhanced sensitivity for detailed red nebula and star field capture
  • 20MP stacked BSI Live MOS sensor for high-sensitivity night imaging
  • TruePic X processor enabling advanced computational photography
  • High Res Shot stacking for high-resolution astrophotography composites
  • Starry Sky AF for accurate autofocus on point light sources
  • Night Vision Mode for improved composition in low-light conditions
  • Live Composite mode for in-camera star trail capture
  • Custom C1 to C3 modes preset for astrophotography capture
  • Dedicated colour profiles for nebulae and starry landscapes
  • High 5-axis Sync-IS for stabilised long-exposure shooting
  • Vintage-styled premium metal body with IP53 dust and splash resistance
  • 2.36m-dot OLED electronic viewfinder for precise night framing
  • Creative Dial with colour, monochrome, and art filter controls
  • RAW video data output with S&Q slow and quick motion support
  • Wi-Fi and Bluetooth for remote operation and image transfer

The OM SYSTEM OM-3 ASTRO is a dedicated astrophotography model derived from the OM-3, distinguished by a newly tuned infrared cut filter positioned in front of the sensor. This filter enables the camera to achieve approximately 100% transmission of Hα wavelengths, allowing red emission nebulae to be recorded with greater intensity and clarity than is possible with standard digital camera filtration. This architectural change directly affects colour capture at the sensor level, improving nebula reproduction without external modification.

Beyond the optical adjustment, the OM-3 ASTRO integrates astrophotography-specific presets and controls across the system. Preconfigured custom shooting modes, dedicated colour profiles, High Res Shot stacking, and night-focused viewing and AF tools reduce setup time and improve repeatability during extended night sessions. Together, these changes mark a functional shift from a general-purpose mirrorless camera to a purpose-built astrophotography platform.

Sensor and processing
The OM-3 ASTRO combines a 20 MP stacked back-illuminated Live MOS sensor with the TruePic X image processor. The stacked sensor supports faster readout and stable multi-frame capture, while the BSI structure improves light gathering during high-sensitivity shooting. TruePic X processes complex computational tasks such as stacking and noise reduction, resulting in cleaner star fields, galaxies, and nightscapes, and more consistent colour reproduction during long exposures.

IR-cut filter and Hα optimisation
The custom IR-cut filter mounted in front of the OM-3 ATSRO’s image sensor is optically tuned for astrophotography. Its transmission characteristics are adjusted to pass Hα wavelengths, which are usually suppressed in general photography cameras, altering how red light is recorded at capture. The filter enables nebulae emitting Hα light to be rendered with clarity and more accurate colour directly in-camera, reducing the need for post-processing corrections or camera modifications.

High-resolution stacking for astrophotography
High Res Shot is a computational feature that composites multiple frames into a single high-resolution image. When used with a camera mounted on a tripod or an equatorial mount, the OM-3 ASTRO can generate a composite image with approximately 50 million pixels from 12 frames. The stacking process aligns individual frames to correct for star movement, compensating for diurnal motion and minor tracking errors while reducing noise compared to a single long exposure.

Autofocus and night photography tools
Starry Sky AF on the OM-3 Astro is designed to detect and focus on point light sources, enabling reliable autofocus on stars with minimal contrast. Night Vision Mode increases display brightness without affecting exposure, supporting accurate composition in dark environments. Live Composite allows star trails to be built incrementally with a live preview, providing direct control over trail length and exposure balance during capture.

Stabilisation and body design
High 5-axis Sync-IS stabilises the sensor to reduce the impact of small movements during long exposures and multi-frame capture. This stabilisation improves framing stability and alignment accuracy when using High Res Shot or composing starry landscapes without a tripod. For long-exposure deep-sky imaging when using a tripod or equatorial mount, you can turn off stabilisation. The vintage-styled premium metal body provides structural rigidity, while IP53-rated dustproof, splashproof, and freezeproof sealing supports outdoor night shooting in cold or damp conditions. This combination improves stability and reliability during extended astrophotography sessions.

Viewing, controls, and connectivity
A 2.36m-dot OLED electronic viewfinder provides a clear, detailed view for precise framing at night. The Creative Dial offers direct access to colour profile control, monochrome profile control, colour creator, and art filters, enabling tailored colour behaviour for different night sky subjects. S&Q mode supports slow and quick motion video, while RAW video data output allows external recording. Built-in Wi-Fi and Bluetooth enable remote operation, image transfer, and extended control during long-duration shooting.

What’s in the box?
  • OM SYSTEM OM-3 ASTRO Digital Camera Body
  • Battery
  • Body Cap
  • USB Cable
  • Shoulder Strap
  • Instruction Manual
  • Warranty Card
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