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Introduction
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01.Product Tour
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02.Colour & Noise Performance
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03.Motion & Sharpness Performance
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04.Low Light Performance
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05.Compression & Media
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06.Manual Controls
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07.Still Features
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08.Handling & Use
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09.Playback & Connectivity
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10.Audio & Other Features
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11.Panasonic HDC-TM700 Comparison
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12.Canon HF S21 Comparison
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13.JVC GZ-HM400 Comparison
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14.Conclusion
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15.Specs and Ratings
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16.Comments
JVC Everio GZ-HM1
Previous: Part 4
Low Light PerformanceNext: Part 6
Manual Controls
Compression & Media Summary
• Uses AVCHD compression and has four quality settings for recording Full HD video.
• All HD video is recorded at 1080/50i.
• The three high-speed frame rates are 120fps, 300fps, and 600fps and they each record low-resolution video.
• The camcorder has 64GB of internal memory and an SD/SDHC memory card slot.
• Ships with Everio Media Browser HD software.
Compression (7.25)
The JVC GZ-HM1 uses the AVCHD compression system, which has become the standard for consumer camcorders that record HD video. The camcorder has four recording quality options, each of which captures Full HD video at a 1920 x 1080 resolution. Read more about the advantages and disadvantages of AVCHD.
There are no standard definition recording options on the JVC GZ-HM1. The camcorder's three high-speed frame rate settings can be used to capture slow-motion clips, but the resultant videos are extremely low-quality and have stringent clip length limitations.
| Format | Resolution | Bitrate | Codec |
| UXP | 1920 x 1080 | 24Mbps | MPEG-4 AVC/H.264 (AVCHD) |
| XP | 1920 x 1080 | 17Mbps | MPEG-4 AVC/H.264 (AVCHD) |
| SP | 1920 x 1080 | 12Mbps | MPEG-4 AVC/H.264 (AVCHD) |
| EP | 1920 x 1080 | 5Mbps | MPEG-4 AVC/H.264 (AVCHD) |
Media (9.42)
The GZ-HM1 comes with 64GB of non-removable flash memory that can be used to store both video or photos taken with the camcorder. You also have the option of recording to removable SD/SDHC memory cards via the card slot located on the left side of the camcorder (near the top of the LCD cavity). Read more about the advantages and disadvantages of flash memory.
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| The GZ-HM1 also has 64GB of internal flash memory along with its SD/SDHC memory card slot. |
The table below lists the approximate record times for the JVC GZ-HM1 and its four video quality settings. The 64GB of internal memory should be enough space to hold videos from a long vacation or numerous events—unless you're an obsessive video hound. You can always record at a lower quality setting if you feel like you may run out of space and don't have any SDHC memory cards to back you up. JVC does not yet officially support the new higher capacity SDXC memory cards.
| UXP (24Mbps) |
XP (17Mbps) |
SP (12Mbps) |
EP (5Mbps) |
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| 4GB SDHC Card | 20 min | 30 min | 42 min | 1 hour 48 min |
| 8GB SDHC Card | 40 min | 1 hour | 1 hour 28 min | 3 hours 40 min |
| 16GB SDHC | 1 hour 20 min | 1 hour 28 min | 2 hours 56 min | 7 hours 20 min |
| 32GB SDHC Card | 2 hours 40 min | 3 hours 40 min | 5 hours 52 min | 14 hours 40 min |
| 64GB Internal Memory | 5 hours 54 min | 8 hours 21 min | 11 hours 49 min | 29 hours 34 min |
Editing (7.5)
In addition to having a number of in-camera editing features, the GZ-HM1 ships with Everio Media Browser HD. This is the same software that JVC has been including with its camcorders for quite some time now and it assists you with importing video clips, uploading footage to the internet, and burning DVDs. For an overview of the software that ships with the JVC GZ-HM1 and other JVC camcorders, see our article: 'Video Editing Software For Your Camcorder'
The GZ-HM1's 'one-touch' Upload, Export, and Disc burn buttons that are located inside the LCD cavity are also a hot talking point for JVC. As we've noted in previous reviews of JVC camcorders, these buttons aren't all that useful as you must press them before you begin recording in order for them to be functional. This means they don't save you much time, as you can always select videos for upload, export, or DVD burning after you import them with the provided Everio Media Browser software.
| JVC GZ-HM1 Comparisons | ||
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| Panasonic HDC-TM700 | Canon HF S21 | JVC GZ-HM400 |
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