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07-23-2018, 05:28 PM   #16
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QuoteOriginally posted by barondla Quote
Very impressive results. Perhaps not quite a match for the telescope. But darn good. Experimenting is good!
Thanks for sharing,
barond la
And the telescope is not a match for this setup if the measurement is mobility or cost.

07-25-2018, 01:15 PM - 1 Like   #17
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QuoteOriginally posted by kwb Quote

Among Samyang 7.5/3.5, MINOLTA MD 250/5.6 Mirror and LEICA 400mm, is Samyang the only native m43 lens? Is it correct that you're using MINOLTA SR-m43 and m43-Q adapter in series for the mirror lens, and LEICA R-m43 and m43-Q adapter for LEICA?
Hi kwb,
the answers are ; yes, yes, yes.
Previously I was only able to adapt Nikon/Nikkors on Q/Q7
Now, I can adapt all my lenses OM, FD, MD, M42...PK : K 400mm 5.6 ? Mmm...The Leica is better,
Tokina 150-500 5.6 ? this heavy thing needs a try.
Just for Fun

---------- Post added 07-25-18 at 01:21 PM ----------

QuoteOriginally posted by reh321 Quote
And the telescope is not a match for this setup if the measurement is mobility or cost.
It was the idea...but : There is a but
07-25-2018, 06:04 PM - 1 Like   #18
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QuoteOriginally posted by Phenix jc Quote
Hi kwb,
the answers are ; yes, yes, yes.
Previously I was only able to adapt Nikon/Nikkors on Q/Q7
Now, I can adapt all my lenses OM, FD, MD, M42...PK : K 400mm 5.6 ? Mmm...The Leica is better,
Tokina 150-500 5.6 ? this heavy thing needs a try.
Just for Fun

---------- Post added 07-25-18 at 01:21 PM ----------


It was the idea...but : There is a but
Excellent, thanks for clarification. I can see that this m43-Q adapter is like a revolution for people with large collection of m43 lenses or the ones adapted to m43. (That is, unless they don't love fun. )
08-21-2018, 05:05 PM   #19
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It's pretty incredible, but it seems that, You, Pentaxian, have never shared any picture of the classic Pentax 400mm 5.6 adapted on the Q/Q7...
Whatever, I was unable to find any pictures.















This is the SMC Pentax 400MM 5.6 K prime on the Q7 ;
Pictures tomorrow : I just want to remind the general rules of the game for now :

- No middle-class legacy telephoto is good enough for the demanding Q/Q7 sensor.
- f/5.6 (and wider) : Never EVER
- f/8 : Best
- f/11 : Better
- smaller f/stop : Forget about it

(This is a general rule : Check your gear!)


Last edited by Phenix jc; 01-01-2019 at 12:12 PM. Reason: SmugMug killed Flickr : FugSmugMug !
08-22-2018, 10:34 AM - 2 Likes   #20
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1840mm eq.
Fixed camera (almost) so the size of the Blue Heron gives you an idea of the distance.
SOOC (+ small amount of sharpening to go throught a small vignette on a web forum, as usual)









100% crop













































Last edited by Phenix jc; 01-01-2019 at 12:30 PM. Reason: SmugMug killed Flickr : FugSmugMug !
08-29-2018, 02:46 PM - 2 Likes   #21
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Another one : SD 400mm 1:5.6 ø72 Tokina

The focusing ring (IF) is just perfect.
f8 / f11 SOOC
remember : 1840mm
























Crop 100%










Load of purple fringing...

Last edited by Phenix jc; 01-02-2019 at 05:58 PM. Reason: SmugMug killed Flickr : FugSmugMug !
08-31-2018, 01:19 PM   #22
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QuoteOriginally posted by Phenix jc Quote
Another one : SD 400mm 1:5.6 ø72 Tokina

Load of purple fringing...
Despite purple fringing Tokina looks pretty good, seems to show finer details than LEICA at least in these pictures!

Whether or not that's the difference in optical performance or something else (focus? wind? light? shutter speed?) is hard to tell from the pictures alone, maybe you have some insight? Anyway I'm totally enjoying this series, thank you very much!

09-11-2018, 01:27 PM - 1 Like   #23
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QuoteOriginally posted by kwb Quote
Despite purple fringing Tokina looks pretty good, seems to show finer details than LEICA at least in these pictures!

Whether or not that's the difference in optical performance or something else (focus? wind? light? shutter speed?) is hard to tell from the pictures alone, maybe you have some insight? Anyway I'm totally enjoying this series, thank you very much!
Thanks kwb !

So, I'll make a long answer later on
This is the short one for now :



The lens is surprisingly sharp ! already @ 5.6
Small, light, pleasant in hands, perfect focus ring...Cheap.
But fully loaded with CA.
I got the lens for a song...And paid an expensive price for the Nikkor. What a pain.

Last edited by Phenix jc; 01-02-2019 at 05:59 PM. Reason: SmugMug killed Flickr : FugSmugMug !
09-11-2018, 05:35 PM - 2 Likes   #24
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Sigma 400 5.6 "APO".
A word about the lens: Probably the shortest 400mm ever built! Wrong : The Tokina is shorter.
Sigma's "peach skin" coating on the barrel has become sticky over time (as usual).
A black residue remains on your fingers....That's the only reason I used camo gaffer here.
The lens is as sharp as any in its time, more or less the same level as the Nikkor for example.
The focusing ring is not pleasant, it's difficult to be precise, the colours are on the yellowish side
(f8/f11 1840mm eq.)

EDIT & DISCLOSURE : I've just checked the lens, it has developped haze because of the cemented groups separation...
Just a beginning, but the lens is dead. It was clear when I got it.
More infos here : Sigma (AF and MF) 400mm F5.6 APO Lens Reviews - Sigma Lenses - Pentax Lens Review Database
























Last edited by Phenix jc; 01-03-2019 at 02:02 PM. Reason: SmugMug killed Flickr : FugSmugMug !
09-11-2018, 07:42 PM   #25
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QuoteOriginally posted by Phenix jc Quote
Sigma 400 5.6 "APO".
A word about the lens: Probably the shortest 400mm ever built!
Sigma's "peach skin" coating on the barrel has become sticky over time (as usual).
A black residue remains on your fingers....That's the only reason I used camo gaffer here.
The lens is as sharp as any in its time, more or less the same level as the Nikkor for example.
The focusing ring is not pleasant, it's difficult to be precise, the colours are on the yellowish side
(f8/f11 1840mm eq.)




















Very good results with the Sigma 400. Unfortunately mine developed the dreaded front element separation. Always liked the lens.
Thanks for sharing,
barondla
09-18-2018, 12:38 PM   #26
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CANON LENS FD 400mm 1:4.5 CANON
f8 / f11 SOOC
1840mm eq.
Sensitive to CA (purple fringing) even stopped down
That little baby is not bad...












































Next time, something special in m4/3 mount

Last edited by Phenix jc; 01-03-2019 at 03:32 PM. Reason: SmugMug killed Flickr : FugSmugMug !
09-21-2018, 10:10 PM   #27
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I have also got one printed but the result is always somehow "dreamy"... but I havent blackened it of course, could this be the reason?

How did you get it blackened?
09-22-2018, 04:26 AM   #28
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QuoteOriginally posted by Phenix jc Quote
Sigma 400 5.6 "APO".
A word about the lens: Probably the shortest 400mm ever built!
QuoteOriginally posted by Phenix jc Quote


CANON LENS FD 400mm 1:4.5 CANON
f8 / f11 SOOC
1840mm eq.
Sensitive to CA (purple fringing) even stopped down
That little baby is not bad...
Both look awfully large to me, larger than the Sigma 70-300 APO, which I take hiking with me; both look OK in blind, but I can't imagine taking either hiking.
09-24-2018, 11:57 AM   #29
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QuoteOriginally posted by protocold Quote
I have also got one printed but the result is always somehow "dreamy"... but I havent blackened it of course, could this be the reason?

How did you get it blackened?
Answer : Yes!

1/ You've to make the outside of the adapter black, if your adapter is translucent (easy)
2/ You've also to make the inside of the adapter black, because if you don't do that, inner reflexions kill the contrast. This is valid for each & every adapter you could have.

My method for my particular adapter is at #12
Your goal is something matt, choose the material available (cardboard, velvet, gaffer, paint...)
There is no need to be meticulous : Just kill the glossy parts

---------- Post added 09-24-18 at 12:08 PM ----------

QuoteOriginally posted by barondla Quote
Very good results with the Sigma 400. Unfortunately mine developed the dreaded front element separation. Always liked the lens.
Thanks for sharing,
barondla
Aaaargh !
Barondla, I've just checked the lens today, and mine too !!
Just a begining of haze, but it's there.

The lens was clear when I got it, so I was happy to have a keeper...Bad news, the lens is now dead

---------- Post added 09-24-18 at 12:38 PM ----------

QuoteOriginally posted by reh321 Quote
Both look awfully large to me, larger than the Sigma 70-300 APO, which I take hiking with me; both look OK in blind, but I can't imagine taking either hiking.
What about a hike with several 400mm to reach the blind ?
The plastic zoom Sigma 70-300 APO is smaller & lighter of course.

But, it's not a 40cm

All the lenses show the hood deployed BTW


Some specs so far :
# TELYT 1:6.8/400 LEITZ WETZLAR LENS MADE IN GERMANY ø72 2/1 mfd 3.6m L384mm 1.830g 1970-1990
# SMC PENTAX 1:5.6/400 ASAHI OPT. CO., JAPAN mfd 8m 1.285g
# SD 400mm 1:5.6 ø72 Tokina mfd 4m 8/5 984g IF
# 400mm 1:5.6 MULTI-COATED LENS MADE IN JAPAN ø72 SIGMA TELEPHOTO [APO] mfd 4m - 830g (or 1.100g = af) ? 11/8 IF (ZEN finish sticky, cemented groups separation)
# CANON LENS FD 400mm 1:4.5 CANON LENS MADE IN JAPAN (filtres ø34) mfd 4m 1.270g - IF
09-24-2018, 08:46 PM   #30
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QuoteOriginally posted by Phenix jc Quote
Answer : Yes!

1/ You've to make the outside of the adapter black, if your adapter is translucent (easy)
2/ You've also to make the inside of the adapter black, because if you don't do that, inner reflexions kill the contrast. This is valid for each & every adapter you could have.

My method for my particular adapter is at #12
Your goal is something matt, choose the material available (cardboard, velvet, gaffer, paint...)
There is no need to be meticulous : Just kill the glossy parts

---------- Post added 09-24-18 at 12:08 PM ----------


Aaaargh !
Barondla, I've just checked the lens today, and mine too !!
Just a begining of haze, but it's there.

The lens was clear when I got it, so I was happy to have a keeper...Bad news, the lens is now dead

---------- Post added 09-24-18 at 12:38 PM ----------


What about a hike with several 400mm to reach the blind ?
The plastic zoom Sigma 70-300 APO is smaller & lighter of course.

But, it's not a 40cm

All the lenses show the hood deployed BTW


Some specs so far :
# TELYT 1:6.8/400 LEITZ WETZLAR LENS MADE IN GERMANY ø72 2/1 mfd 3.6m L384mm 1.830g 1970-1990
# SMC PENTAX 1:5.6/400 ASAHI OPT. CO., JAPAN mfd 8m 1.285g
# SD 400mm 1:5.6 ø72 Tokina mfd 4m 8/5 984g IF
# 400mm 1:5.6 MULTI-COATED LENS MADE IN JAPAN ø72 SIGMA TELEPHOTO [APO] mfd 4m - 830g (or 1.100g = af) ? 11/8 IF (ZEN finish sticky, cemented groups separation)
# CANON LENS FD 400mm 1:4.5 CANON LENS MADE IN JAPAN (filtres ø34) mfd 4m 1.270g - IF
Sorry to hear your lens front elements have also separated. Hadn't used mine for a while and thought it had fogged up due to going from air conditioning to humid outdoors. Nope. Totally useless lens. Such a shame.

Thanks,
barondla
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