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{{DISPLAYTITLE:Canon EOS 750D}} | {{DISPLAYTITLE:Canon EOS 750D}} | ||
__TOC__ | |||
{| style="width:100% | = Canon EOS 750D = | ||
[[File:Canon-EOS-750D.jpg|thumb|right|300px|Canon EOS 750D with kit lens 18–55mm]] | |||
The '''Canon EOS 750D''' (also sold as the '''Rebel T6i''' in North America and '''Kiss X8i''' in Japan) is a 24.2 MP APS-C DSLR released in February 2015. It is available at the makerspace as a shared resource — great for product shots, documentation, macro work and experimenting with photography fundamentals. | |||
{{Ambox | |||
| type = notice | |||
| text = '''New to the camera?''' Start at [[#The Mode Dial|The Mode Dial]] and ignore everything else. Come back to the rest when you're curious. | |||
}} | |||
---- | |||
== The Mode Dial == | |||
The big dial on top controls ''how much'' the camera thinks for you versus how much you control manually. | |||
{| class="wikitable" style="width:100%" | |||
! Symbol !! Name !! What it does !! Best for | |||
|- | |||
| <big>'''AUTO''' / 🟢</big> || Scene Intelligent Auto || Camera decides everything || Absolute beginners, snapshots | |||
|- | |||
| <big>'''CA'''</big> || Creative Auto || Auto, but you can nudge blur and brightness || Getting comfy with creative choices | |||
|- | |||
| <big>'''P'''</big> || Program AE || Camera sets exposure, you control ISO + flash || General use once you know a little | |||
|- | |||
| <big>'''Tv'''</big> || Shutter Priority || ''You'' set shutter speed, camera sets aperture || Moving subjects, light trails, freezing motion | |||
|- | |||
| <big>'''Av'''</big> || Aperture Priority || ''You'' set aperture, camera sets shutter speed || Portraits, product shots, controlling depth of field | |||
|- | |||
| <big>'''M'''</big> || Manual || You control everything || Studio work, full creative control | |||
|- | |||
| <big>☼</big> / 🌕 || Scene modes || Presets for Portrait, Landscape, Sports, etc. || Quick situational shooting | |||
|- | |- | ||
| | | <big>▶</big> || Movie || Video recording mode || Video, obviously | ||
< | |} | ||
{{Tip|'''Start with Av.''' Set your aperture, let the camera handle the rest. It's the most useful "one foot in" mode and teaches you the most about how lenses work.}} | |||
---- | |||
== The Exposure Triangle == | |||
Every photo is determined by three settings working together. Change one, and the others are affected. | |||
{| class="wikitable" style="width:100%; text-align:center;" | |||
! colspan="3" | △ The Exposure Triangle | |||
|- | |||
! [[#Aperture ℉ (f-stop)|◎ Aperture]] !! [[#Shutter Speed 📷|⏱ Shutter Speed]] !! [[#ISO ▦|☉ ISO]] | |||
|- | |||
| Controls ''how much light'' enters through the lens and ''depth of field'' || Controls ''how long'' the sensor is exposed to light || Controls the sensor's ''sensitivity'' to light | |||
|} | |} | ||
=== Aperture ◎ (f-stop) === | |||
Written as '''f/2.8''', '''f/5.6''', '''f/16''', etc. Counter-intuitively: '''smaller number = bigger opening = more light + blurrier background.''' | |||
{{Quote|'''Visual demo:''' [https://i.imgur.com/HnkSMJp.gif ► See how aperture affects depth of field (animated gif)] — notice how the depth of field compresses as the aperture closes down. [https://www.reddit.com/r/Filmmakers/comments/4adabh/aperture_gif/ Original thread]}} | |||
{| | {| class="wikitable" | ||
! f-stop !! Aperture size !! Depth of field !! Light !! Typical use | |||
|- | |||
| f/1.8 – f/2.8 || ● Large || Very shallow (blurry BG) || ⭐⭐⭐ Lots || Portrait, low light | |||
|- | |||
| f/4 – f/5.6 || ◕ Medium || Moderate || ⭐⭐ Some || General, kit lens sweet spot | |||
|- | |||
| f/8 – f/11 || ○ Small || Deep (most things sharp) || ⭐ Less || Landscapes, product shots | |||
|- | |- | ||
| | | f/16 – f/22 || ◌ Tiny || Very deep || Minimal || Macro stacking, architecture | ||
|} | |||
{{Note|The kit lens (18–55mm) opens to f/3.5 at wide end and f/5.6 zoomed in. For seriously blurry backgrounds, look for prime lenses with f/1.8 in the makerspace lens bag.}} | |||
=== Shutter Speed ⏱ === | |||
Written as '''1/500''', '''1/60''', '''2"''' etc. '''Faster = freezes motion. Slower = motion blur + camera shake.''' | |||
{| class="wikitable" | |||
! Speed !! Effect !! Notes | |||
{| class="wikitable | |||
! | |||
! | |||
|- | |- | ||
| | | 1/1000 and faster || Freezes fast motion || Sports, machines in motion | ||
| | |||
|- | |- | ||
| | | 1/250 – 1/500 || Freezes normal motion || Walking people, everyday use | ||
| | |||
|- | |- | ||
| | | 1/60 – 1/125 || Slight blur possible || Handheld safe zone with IS lens | ||
| | |||
|- | |- | ||
| | | 1/30 and slower || Motion blur / light trails || Use a tripod. Anything below 1/focal length = shake risk. | ||
| | |||
|- | |- | ||
| | | Bulb (B) || Open as long as you hold || Star trails, lightning, long exposures | ||
| | |||
|} | |} | ||
{{Warning|The 750D syncs flash at max '''1/200 s'''. Faster than that with flash = black bar across your image.}} | |||
=== ISO ☉ === | |||
= | '''Higher ISO = brighter image + more grain (noise). Use the lowest ISO that gives a properly exposed shot.''' | ||
{| class="wikitable" | |||
! ISO !! Noise !! Use when… | |||
|- | |||
| 100 – 400 || ✓ Clean || Outdoors, good light, studio | |||
|- | |||
| 800 – 1600 || Slight grain || Indoors, cloudy, dim makerspace | |||
|- | |||
| 3200 – 6400 || Visible grain || Low light, concerts, candid | |||
|- | |- | ||
| | | 12800 – H25600 || Heavy grain || Emergency only — noticeably soft | ||
| | |||
|} | |} | ||
''' | ---- | ||
== Field of View & Crop Factor == | |||
{{Quote|'''Visual demo:''' [https://i.imgur.com/0dj09Bb.jpg ► See how sensor size affects field of view (comparison image)] — notice how the same lens covers a different angle depending on sensor size. [https://www.reddit.com/r/photography/comments/t5ldg/i_dont_think_i_have_ever_seen_a_better_example_of/ Original thread]}} | |||
The 750D has an '''APS-C sensor''' (22.3 × 14.9 mm), which is smaller than a full-frame (35mm) sensor. This means lenses appear '''1.6× more zoomed in''' than they would on a full-frame camera. | |||
{| class="wikitable" style="text-align:center;" | |||
! Lens focal length !! Effective focal length on 750D !! Effective angle of view | |||
|- | |||
| 18mm || ~29mm || Wide — fits in a room | |||
|- | |||
| 35mm || ~56mm || Close to natural human vision | |||
|- | |||
| 50mm || ~80mm || Short portrait length | |||
|- | |||
| 85mm || ~136mm || Classic portrait | |||
|- | |||
| 200mm || ~320mm || Strong telephoto | |||
|} | |||
This is useful for makerspace documentation: an 18–55mm kit lens at 18mm gives you a workbench-width shot in the big room. | |||
---- | |||
== | == Autofocus == | ||
=== AF Modes === | |||
{| class="wikitable" | {| class="wikitable" | ||
! | ! Symbol !! Mode !! Use it for… | ||
! | |||
|- | |- | ||
| | | '''ONE SHOT''' || Single autofocus — locks when you half-press ◉ || Still subjects, product photography | ||
| | |||
|- | |- | ||
| | | '''AI FOCUS''' || Auto-switches between One Shot and Servo || Mixed shooting, safe default | ||
| | |||
|- | |- | ||
| | | '''AI SERVO''' || Continuous AF — keeps tracking a moving subject || Moving people, action | ||
| | |||
|} | |} | ||
=== AF Point Selection === | |||
The 750D has '''19 cross-type AF points'''. By default it uses all of them (camera picks). For product shots or portraits, manually select a single point: | |||
# Press the AF point button (top-right of viewfinder area, '''▦''' icon) | |||
# Use the d-pad or touchscreen to move the point | |||
# Half-press shutter to lock focus, then recompose if needed | |||
{{Tip|For macro/close-up work on a copy stand, disable AF entirely — switch the lens barrel to '''MF''' and focus manually using live view zoom (push the magnifier button 🔍 to zoom 5× or 10×).}} | |||
---- | |||
Controls | == Metering Modes == | ||
Controls ''which part of the frame'' the camera uses to calculate exposure. | |||
{| class="wikitable" | {| class="wikitable" | ||
! | ! Symbol !! Mode !! Description | ||
! | |||
|- | |- | ||
| | | ⊙ || Evaluative || Analyses the whole scene — default, works 90% of the time | ||
| | |||
|- | |- | ||
| | | ◔ || Partial || Reads ~9% at centre — useful for backlit subjects | ||
| | |||
|- | |- | ||
| | | ◎ || Spot || Reads ~3.8% at centre — pin-precise, for tricky lighting | ||
| | |- | ||
| ⊕ || Centre-weighted || Biases the centre but reads the whole frame | |||
|} | |} | ||
---- | |||
== Live View & Video == | |||
Press the '''▶■''' switch beside the viewfinder to enter Live View. The screen flips out and rotates — useful for overhead shots on a copy stand. | |||
* Touch the screen to focus on a spot | |||
* Pinch to zoom for manual focus check | |||
* '''Movie mode:''' turn the mode dial to ▶, press the red ● button to record | |||
{| | '''Video specs:''' | ||
{| class="wikitable" | |||
! Resolution !! Frame rates !! Notes | |||
|- | |||
| 1080p (Full HD) || 24p / 25p / 30p || Best for general video | |||
|- | |||
| 720p (HD) || 50p / 60p || Smooth slow-motion at 50% | |||
|- | |- | ||
| | | 480p (SD) || 25p / 30p || Small file sizes only | ||
== | |} | ||
{{Note|There is no 4K on the 750D. For 4K documentation, use a smartphone or check if the makerspace has a different camera available.}} | |||
---- | |||
== White Balance == | |||
White balance tells the camera what ''true white'' looks like in your lighting. Wrong WB = orange/blue cast. | |||
{| class="wikitable" | {| class="wikitable" | ||
! | ! Symbol !! Setting !! Use when… | ||
! Use | |||
|- | |- | ||
| | | '''AWB''' || Auto White Balance || Default — usually fine | ||
| | |||
|- | |- | ||
| | | ☀ || Daylight || Outdoors in sun | ||
| | |||
|- | |- | ||
| | | ☁ || Cloudy || Overcast sky | ||
| | |||
|- | |- | ||
| | | 💡 || Tungsten / Incandescent || Old warm bulbs (goes very blue — correct for orange cast) | ||
| | |- | ||
| | | 💡□ || White fluorescent || Strip lighting (common in makerspace rooms) | ||
| | |- | ||
| ⚡ || Flash || When using the popup flash | |||
|- | |||
| K || Kelvin || Manual colour temperature — for nerds and studios | |||
|- | |||
| □ || Custom || Set from a grey card — most accurate | |||
|} | |} | ||
== | {{Tip|For product documentation under the makerspace's fluorescent lights, try '''White Fluorescent''' or shoot RAW and fix it in post.}} | ||
---- | |||
== Shooting RAW vs JPEG == | |||
{| class="wikitable" style="width:100% | {| class="wikitable" style="width:100%" | ||
! | ! !! RAW (.CR2) !! JPEG | ||
! | |||
|- | |- | ||
| | | '''File size''' || ~25–30 MB per shot || ~5–10 MB per shot | ||
| | |||
|- | |- | ||
| | | '''Editing flexibility''' || Maximum — recover blown highlights, fix WB, etc. || Limited | ||
| | |||
|- | |- | ||
| | | '''Straight out of camera''' || Flat, needs processing || Ready to use | ||
| | |||
|- | |- | ||
| | | '''Use for''' || Product shots, portraits, anything you'll edit || Quick documentation, web use | ||
| | |||
|} | |} | ||
== | Set via '''MENU → ▦ (camera icon) → Image Quality''' | ||
---- | |||
== Flash == | |||
The built-in popup flash (GN 9.4 at ISO 100) is adequate for fill flash or emergency indoor use. '''It is not flattering for portraits.''' | |||
For makerspace use (3D scanning, product photography): | |||
* Turn flash '''OFF''' — use diffused ambient light or a desk lamp | |||
* Use the '''⚡ Flash Off''' mode on the dial if you want the camera to still auto-expose without ever firing flash | |||
External flash hotshoe is standard Canon E-TTL II compatible. | |||
{| class="wikitable" style="width:100%;" | ---- | ||
! | |||
! | == Technical Specifications == | ||
{| class="wikitable" style="width:100%" | |||
|+ Canon EOS 750D — Full Specifications | |||
! colspan="2" style="background:#cc0000; color:white;" | 📷 Sensor | |||
|- | |||
| Sensor type || APS-C CMOS | |||
|- | |||
| Sensor size || 22.3 × 14.9 mm | |||
|- | |||
| Crop factor || 1.6× | |||
|- | |||
| Effective pixels || 24.2 megapixels | |||
|- | |||
| Max resolution || 6000 × 4000 px (3.71 µm pixel pitch) | |||
|- | |||
| Aspect ratios || 3:2, 4:3, 16:9, 1:1 | |||
|- | |||
! colspan="2" style="background:#cc0000; color:white;" | ⏱ Shutter | |||
|- | |||
| Type || Electronic focal-plane | |||
|- | |||
| Speed range || 1/4000 s — 30 s + Bulb | |||
|- | |||
| Flash sync || 1/200 s (X-sync) | |||
|- | |||
| Continuous shooting || 5.0 fps (180 JPEG / 7 RAW) | |||
|- | |||
! colspan="2" style="background:#cc0000; color:white;" | 🔍 Autofocus | |||
|- | |||
| AF system || 19 cross-type points (Hybrid CMOS AF III) | |||
|- | |||
| Centre point || High-precision double cross-type at f/2.8 | |||
|- | |||
| Live view AF || FlexiZone-Multi / Single, Face Detection, Movie Servo | |||
|- | |||
! colspan="2" style="background:#cc0000; color:white;" | ☉ Sensitivity | |||
|- | |||
| Native ISO range || ISO 100 – 12800 | |||
|- | |||
| Extended ISO || H: 25600 | |||
|- | |||
! colspan="2" style="background:#cc0000; color:white;" | 📹 Video | |||
|- | |||
| Max resolution || 1920 × 1080 (Full HD) at 24/25/30p | |||
|- | |||
| 720p || 50p / 60p | |||
|- | |||
| Codec || H.264 / MPEG-4 AVC (.MOV) | |||
|- | |||
| External mic || 3.5 mm mini-jack ✓ | |||
|- | |||
! colspan="2" style="background:#cc0000; color:white;" | 🖵 Display | |||
|- | |- | ||
| | | Screen || 3.0" vari-angle Clear View II TFT touchscreen, 1,040,000 dots | ||
| | |||
|- | |- | ||
| | | Viewfinder || Optical pentamirror, 95% coverage, 0.82× magnification | ||
| | |||
|- | |- | ||
| | ! colspan="2" style="background:#cc0000; color:white;" | 🔌 Power & Body | ||
|- | |- | ||
| | | Battery || LP-E17 Li-Ion (1040 mAh), ~440 shots per charge (CIPA) | ||
| | |||
|- | |- | ||
| | | Storage || SD / SDHC / SDXC (UHS-I) | ||
| | |||
|- | |- | ||
| | | Connectivity || Wi-Fi, NFC | ||
| | |||
|- | |- | ||
| | | Lens mount || Canon EF-S (EF lenses compatible with 1.6× crop) | ||
| | |||
|- | |- | ||
| | | Body dimensions || 132 × 101 × 78 mm | ||
| | |||
|- | |- | ||
| | | Weight (body only) || 510 g | ||
| | |||
|- | |- | ||
| | | Processor || DIGIC 6 (14-bit processing) | ||
| | |- | ||
| Metering || 63-zone iFCL + 7560-px RGB+IR sensor | |||
|} | |} | ||
== | === Sensor Size Comparison === | ||
{| class="wikitable" style="width:100% | {| class="wikitable" style="text-align:center; width:100%" | ||
! | ! Sensor format !! Dimensions !! Area !! Crop factor !! Example cameras | ||
! | |||
|- | |- | ||
| | | Full Frame (35mm) || 36 × 24 mm || 864 mm² || 1× || Canon 5D, Sony A7 | ||
| 24 | |||
|- | |- | ||
| | | APS-H || 28.7 × 19.1 mm || 548 mm² || 1.26× || Canon 1D (old) | ||
| | |||
|- | |- | ||
| | | '''APS-C (Canon)''' || '''22.3 × 14.9 mm''' || '''332 mm²''' || '''1.6×''' || '''EOS 750D ← you are here''' | ||
| | |||
|- | |- | ||
| | | APS-C (Nikon/Sony) || 23.5 × 15.6 mm || 367 mm² || 1.5× || Nikon D3500, Sony A6400 | ||
| | |||
|- | |- | ||
| | | Micro Four Thirds || 17.3 × 13 mm || 225 mm² || 2× || Olympus OM-D, Panasonic GH5 | ||
| | |||
|- | |- | ||
| | | 1" || 13.2 × 8.8 mm || 116 mm² || 2.7× || Sony RX100 series | ||
| | |||
|- | |- | ||
| | | 1/2.3" || 6.17 × 4.55 mm || 28 mm² || 5.6× || Most compact cameras / smartphones | ||
| | |||
| | |||
| | |||
| | |||
| | |||
| | |||
| | |||
|} | |} | ||
---- | |||
== Common Makerspace Use Cases == | |||
''' | === Product / Object Documentation === | ||
* Use '''Av mode''' at '''f/8 – f/11''' for maximum sharpness and depth | |||
* ISO 100–400 if you have decent light | |||
* Use the flip screen for overhead copy-stand shots | |||
* White balance: '''Custom''' from a grey card, or shoot RAW | |||
* For EinScan objects: shoot at f/8 before and after scanning — useful reference | |||
''' | === Macro / Close-up Work === | ||
* Kit lens works down to ~25cm — for tighter work, use extension tubes (check lens bag) | |||
* Manual focus + live view magnification (🔍 button) | |||
* Use '''AI Servo''' + continuous burst if subject might move | |||
* Aperture: f/8–f/16 for more depth (very shallow at close range) | |||
=== 3D Scanning Support === | |||
* Shoot reference photos of subject before placing on EinScan SE turntable | |||
* Use consistent lighting — turn off overhead flickering strips if possible (Anti-flicker mode: MENU → ▦ → Anti-flicker shooting) | |||
''' | === Workshop / Event Documentation === | ||
* '''AI Focus''' auto mode, ISO Auto (max 3200), Av at f/4–f/5.6 | |||
* Use the articulating screen to get interesting low angles | |||
* Wi-Fi + Canon Camera Connect app lets you use your phone as remote shutter | |||
=== Infrared / Modified Photography === | |||
{{Note|The 750D has a standard hot mirror (IR cut filter) installed. It is not modified for full-spectrum. If you need IR photography, check with the makerspace coordinators — this may be modified in future or an alternative body sourced.}} | |||
---- | |||
== Known Issues == | |||
== | * '''Sensor banding in astrophotography:''' Horizontal banding artefacts visible under aggressive post-processing — inherent to Hybrid CMOS AF III phase-detect pixels. Not a defect, just a limitation. | ||
* '''Dark circles (early units):''' Canon issued a recall/repair for a small batch of early 750D/760D units with circular dark patterns. Check serial number against Canon's list if shooting at small apertures in bright light. | |||
---- | |||
== Lens Compatibility == | |||
{| class="wikitable" | {| class="wikitable" | ||
! | ! Mount !! Compatible? !! Notes | ||
|- | |||
| '''EF-S''' || ✓ Full native || Designed for APS-C — widest angle options | |||
|- | |||
| '''EF''' || ✓ Full native || Full-frame lenses work fine, with 1.6× crop | |||
|- | |- | ||
| | | '''EF-M''' || ✗ No || Mirrorless mount — incompatible | ||
| | |||
|- | |- | ||
| | | '''RF''' || ✗ No || New Canon mirrorless — incompatible without adapter | ||
| | |||
|- | |- | ||
| | | '''Third-party EF''' || ⚠ Usually || Sigma/Tamron Art series generally fine; older manual primes need adapter | ||
| | |||
|} | |} | ||
== | ---- | ||
* | |||
* | == See Also == | ||
* Product | |||
* | * [[Camera Techniques — Depth of Field]] | ||
* [[Macro Photography Setup]] | |||
* [[Product Photography Lighting]] | |||
* [[EinScan SE — 3D Scanner]] | |||
* [[Copy Stand Usage]] | |||
---- | |||
== External Resources == | |||
* [https://www.usa.canon.com/support/p/eos-rebel-t6i Official Canon EOS 750D / Rebel T6i Support Page] | |||
* [https://www.dpreview.com/reviews/canon-eos-rebel-t6i-750d dpreview full review] | |||
* [https://www.manualslib.com/brand/canon/eos-750d/ Canon EOS 750D Manuals (ManualsLib)] | |||
* [https://i.imgur.com/HnkSMJp.gif Aperture depth of field animation] | |||
* [https://www.reddit.com/r/photography/comments/t5ldg/ Sensor crop factor field of view comparison] | |||
---- | |||
{{Cameras-stub}} | |||
[[Category:Makerspace Equipment]] | |||
[[Category:Photography]] | |||
[[Category:Canon Cameras]] | |||
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