Drawbacks of Pentax Q-Q10 despite Fabulous 1/2.3" imx078 BSI sensor.
– Multi-Exposure Mode always outputs a JPEG, not a RAW file. – IR Remote doesn't work w/ Bulb nor Intervalometer. – No Wired Remote Control Port on Pentax Q, Q10, Q7, Qs1. – No way to Set the LENR Fully ON or OFF. But, Zero Limitations for Hand-Held Landscape IR-Photography !
More Advantages to the Pentax Q, Q10 over other 1/2.3" BSI cameras. – Q - Q10 are unique 1/2.3" BSI MLs to support interchangeable Lenses.
– Q-for-K optional Adapter opens the Q, Q10 to the whole 'K' Lens System. – Q-for-K holds usual 1"1/4 Astro-Filters : PentaxK2Q1in25Filter.html
Pentax Leaf Shutter Adapter, 1/1000s Flash Sync Speed, 30sec. Bulb/Man. From FF to 1/2.3", Crop ratio is 5.6x - Clic Image, Ctrl+ to Enlarge.
– Q-Q10 have a 1Ah Battery, it lasts 1 summer night w/o Live-View abuse. – The Q-10 is a CostLess camera, I bought mine for $170€ in spring 2014. – The IR-cut Filter of the Q, Q10 is Easy to Remove. PentaxQ10AstroIR.html
– Then the Q, Q10 are No longer Limited to High-ISO + Tripod + R72-Filter ! This opens doors to Fantastic Hand-Held Landscape IR-Photography. Search.for/?q=Landscape-IR-Photography&tbm=isch See IR SnapShot taken at ISO-100, f/8, 1/320 sec.at the end of this page.
How to Thin the Bayonet-Mount of the Pentax Q / Q10. IR-cut filter being 0.6 only, you just need to Reduce BF 0.2 mm Maximum. - an Optical Rule useful when you insert / remove a Glass-Filter from a BF Path.
0.2 Maximum, because of Tolerance, if your Q has 0.05 of it.
Then you just need to Reduce BF 0.15 mm off.
Test: are More 0.01 off needed ?
Clic Image, Ctrl+ to Enlarge.
It's Very Easy: from 1.5 to 3 hours of High Precision, 0.02 mm, Hand Work. Please, don't begin doing it if you don't feel able to achieve it. It's Your Own Full Responsibility to do it. Or not to.
- Remove the 6 Screws. Then the Bayonet.
- Verify that you find the Same Measurements as mine.
.. if Not, Write your Own Measurements then Subtract 0.15 mm from them.
- for this, you need a Vernier Caliper. - a friend of yours owns a Metal Lathe, you just have to remove 0.15 mm from the Front-side of the Bayonet Front-side. Then let's Test AF w/ it.
- else you need a 10-11 mm thickness Three Square smooth Hand File.
the 6+3 holes are in the External Crown of the Bayonet BackSide: 2.3 thickness.
it'll be reduced to 2.2 all around at the same time than 3 of the following Sectors. turning clockwise. the Internal Bayonet Backside is divided into 6 Sectors starting at "InD33" mark.
-1. from ~1:0 to 2:30am hole #2 position: 2.4 thickness Sector to reduce to 2.2 (2 from 2:30 to 4:30am = 2.7 mm Thickness sector: left as is).
-3. from 4:30 to 6:30am hole #4 position: 2.4 thickness Sector to reduce to 2.2 (4 from 6:30 to 8:30am = 2.7 mm Thickness sector: left as is).
-5. from 8:30 to 10:0am hole #6 position: 2.4 thickness Sector to reduce to 2.2 (6 from 10:0 to ~1:0pm = 2.7 mm Thickness sector: left as is).
Q10's Bayonet Mount backside: 3x 2.4 mm Sectors + 2.3 mm Ext.Crown to thin. Clic Image, Ctrl+ to Enlarge
Backside of the Bayonet : External Crown (6+3 holes) was 2.3 thickness + 3 internal thinner Sectors were 2.4 thickness : now all are 2.2 mm
I didn't touch the 3 other Sectors, they still are 2.7 thickness -> 1st Sector begins at " InD33 " mark I hope the grazing light shows all the details : don't reduce the 2.7 mm Sectors
Thinner Q10s Bayonet Mount: -0.2 and -0.1 this side, -0.1 mm Max other side Clic Image, Ctrl+ to Enlarge.
Once you've reached 2.2 mm thickness in these 3 Sectors - initially at 2.4 mm,
and, at same time all around the External Crown (6+3 holes) initially at 2.3 mm you'll have to thin the Frontside of the Bayonet of 0.05 mm to get started.
Then, carefully Clean the Bayonet. Remount it with its Six Screws. Don't tighten too much, 6 Screws are screwed into plastic. Put the 5-15 mm Zoom-lens, is your AF working ? Do you hear the AF-Confirmation 'BIP' ?
No, you'll have to go for 2.15... Note : -1. the 9-15 mm range works First. -2. the 5-9 mm range works Later, ie with a Thinner Mount !
My Q10 is fine at 2.15 thickness, I'll confirm this when summer temp at 35+°C. If your Own Measurements minus 0.15 gives you 2.15... go for 2.15 ?
