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02-05-2015, 11:42 AM   #166
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QuoteOriginally posted by grahame Quote
Thanks. Good to know.
BTW, it is because DC does not compatible with screw drive AF? All duel-AF lenses are SDM and screw drive. All DC lenses to far, 18-135 and these two, are DC only?
I don't know if the new lenses support both, but since all bodies since the K10D have supported both types, and I doubt they are marketing the lens to older cameras like that where they will likely vastly out perform the sensor, then I have doubts that it will have screwdrive on them, but who knows. Maybe someoen can get a good shot of the mount to settle it. We should know by CP+ though.

---------- Post added 02-05-15 at 01:48 PM ----------

QuoteOriginally posted by grahame Quote
I love to see that. My takumars can still be stabilized, and all FAs and DAs. I will cry if pentax decided to put SR on lens only.

I have an A7, and I really miss the SR.
Heh, none of my FF compatible lenses have OS. Here's my lenses, and it will be interesting to see how they would perform on FF. If the specs are good and it falls in the 1800-2300 range I may get one and have my K5 Ha converted. I think only 4 of mine aren't FF compatible, but someone will correct me if I'm wrong.

Pentax DA18-135WR
Pentax DA 40xs f/2.8
Pentax F 50 f/1.7
Takumar F 70-210 f/4-5.6
Pentax F 28-80 f/3.5-4.5
Pentax 1.7 AF adapter
Sigma 150-500 f/5-6.3 HSM
Sigma 18-35 f/1.8 HSM Art
Sigma 24-70 HSM f/2.8
Sigma 70-300 DL Macro
Sigma 8-16 f/4.5-5.6
Tamron 17-50 f/2.8
Tamron 70-200 f/2.8

02-05-2015, 12:46 PM   #167
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QuoteOriginally posted by VoiceOfReason Quote
Looks like there isn't OS in the lens, so it looks like Pentax will be the first actual FF DSLR with IBIS.
Mmm what about Sony a900/a850 ??

---------- Post added 05-02-15 at 20:48 ----------

QuoteOriginally posted by GeneV Quote
Indeed but that info was not available, at least officially, at the time of my writing.
02-05-2015, 01:09 PM   #168
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QuoteOriginally posted by thibs Quote
Mmm what about Sony a900/a850 ??
They weren't classed as DSLRs. I think they were called DSLTs or something.
02-05-2015, 01:13 PM   #169
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QuoteOriginally posted by thibs Quote
Mmm what about Sony a900/a850 ??.
THey weren't classified as a regular DSLR.

02-05-2015, 01:16 PM   #170
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These 6 lenses should be FF compatible
Pentax F 50 f/1.7
Takumar F 70-210 f/4-5.6
Pentax F 28-80 f/3.5-4.5
Sigma 150-500 f/5-6.3 HSM
Sigma 24-70 HSM f/2.8
Tamron 70-200 f/2.8
02-05-2015, 01:23 PM   #171
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The A900/A850 definitely were DSLRs.
02-05-2015, 01:31 PM   #172
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And the (current) A99.

But they use that half-silvered mirror thing.

Not a lot of love for them.

Let's hope the Pentax does well.
02-05-2015, 01:34 PM   #173
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If the mirror swings up it is a Reflex. dSLR(eflex). If not, it isn't.

To the extent any of the named Sony cameras used a pellicle mirror, they weren't dSLR's.

[EDIT: Assertion Corrected HERE - 'Refelex' refers to the light patch 'reflecting' off a mirror through the prism and viewfinder. Which affirms my point.]


Last edited by monochrome; 02-14-2015 at 08:18 AM.
02-05-2015, 01:42 PM   #174
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QuoteOriginally posted by monochrome Quote
If the mirror swings up it is a Reflex. dSLR(eflex). If not, it isn't.

To the extent any of the named Sony cameras used a pellicle mirror, they weren't dSLR's.
It's all a bit semantic really. The reflex part refers to the path of the light being "folded" by the mirror - hence the once popular twin lens reflexes. That said, Sony always referred to their pellicle mirror cameras as Digital Single Lens Translucent cameras - DSLTs.
02-05-2015, 02:07 PM   #175
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But the a900/a850 were before Sony started using the SLT technology; they still had actual reflex mirrors then, so they are properly termed DSLRs.

All of the SLT cameras have only 2-digit designations.
02-05-2015, 11:20 PM   #176
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QuoteOriginally posted by monochrome Quote
If the mirror swings up it is a Reflex. dSLR(eflex). If not, it isn't.

To the extent any of the named Sony cameras used a pellicle mirror, they weren't dSLR's.
Well no : wrong on this one. a900/850 are proper dslr. And with FF and with SR. They lacked Liveview at least on the 900 (very stupid) and video (ymmv).
02-13-2015, 07:18 PM   #177
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From one of the review from Korea, both lenses have great AF speed and AF accuracy. Awesome.
02-13-2015, 11:15 PM   #178
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QuoteOriginally posted by sunshine7913 Quote
From one of the review from Korea, both lenses have great AF speed and AF accuracy. Awesome.
Where? Thx
02-14-2015, 12:06 AM   #179
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QuoteOriginally posted by monochrome Quote
If the mirror swings up it is a Reflex. dSLR(eflex). If not, it isn't.

To the extent any of the named Sony cameras used a pellicle mirror, they weren't dSLR's.
Minor point of order: the mirror doesn't have to swing for it to be a reflex camera. There were quite a few twin lens reflex cameras made back in the day. Obviously though, a SLR mirror does need to swing
02-14-2015, 03:49 AM   #180
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QuoteOriginally posted by Sandy Hancock Quote
Minor point of order: the mirror doesn't have to swing for it to be a reflex camera. There were quite a few twin lens reflex cameras made back in the day. Obviously though, a SLR mirror does need to swing
Here is what Wiktionary says:
  • From Late Latin reflexus, past participle of reflectere (“to bend back”). Photography sense is from noun sense meaning “reflection”.
  • (photography) Of a camera or camera mechanism, using a mirror to reflect the image onto a ground-glass viewfinder, allowing the photographer to see it up to the moment of exposure.
  • to bend, turn back or reflect
I think departing from reflection of any sort, moving or not, semi-transparent or not, is just personal preference, not established terminology. And remember that part of the mirror in a typically dSLR is semi-transparent, for AF purposes.
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