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03-26-2016, 08:51 AM - 1 Like   #1171
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QuoteOriginally posted by reh321 Quote
I'm wondering whether using a built-in aperture ring gives sharper pictures than using the "aperture control" on the Pentax adapter does. My reason for asking is that when I did do some backyard testing at 300mm, my Sigma 70-300mm APO lens {using its aperture ring} gave sharper results than my Pentax-DA 55-300mm {using the Pentax adapter control} did, and I wasn't positive whether the lens is actually sharper or whether the means of limiting aperture was the real issue. If I get motivated to test again, the obvious solution is to test the Sigma lens using the adapter to control aperture.
That's just the difference between lenses and/or apertures (i.e. if one lens was set on f/5.6 and the other at f/4). The adapter has no aperture of its own (the blades you see in it is the leaf shutter, not the aperture) -- the ring on the adapter just pushes the aperture lever on the lens for you. So as long as you are hitting the same spot for your target aperture, then it doesn't make sense that one would be sharper than the other because there is absolutely no difference between them -- it is the same aperture blades set to the same setting by a different method. It is just a lot easier to use the click stops on the lens if they are available...

12-11-2016, 12:17 PM - 2 Likes   #1172
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Unapologetic thread revival

This was always one of the most interesting and inspiring Q forum threads. It has been dormant for almost 9 months so I thought I would try to revive it. I confess my Q7 has not been getting much attention lately and I just sold my original Q but I love the little camera so I got it out to play today with the DA*300. The attached photo is not much as art but it does show the detail that Q plus adapter plus DA*300 can achieve even handheld. Please let me see some of your recent extreme telephoto shots with the Q. It won't be hard to top mine of my neighbors pigeon deterrent
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PENTAX Q7  Photo 
12-12-2016, 12:02 AM - 5 Likes   #1173
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Taken with Q7, photodiox, & F* 300.


11/15/2016 Supermoon - Pentax Q7, on Flickr
01-19-2017, 10:30 AM - 1 Like   #1174
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Awesome moon shot rgknief60. Shows excellent moon detail.
Thanks for sharing
barondla

---------- Post added 01-19-2017 at 11:38 AM ----------

Amazing detail in a handheld Q/300mm image Mikesul. I've had limited luck using Q/Pentax 55-300 handheld. Never achieved a shot as sharp as yours using the DA*300 hand held. My problem is focusing. I can hold lens steady for a brief instant, but not long enough to manage focusing the big 300. I need more practice! More a monopod/tripod man.
Thanks
barondla

01-19-2017, 11:52 AM - 1 Like   #1175
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QuoteOriginally posted by barondla;3886594[COLOR=Silver:
][/COLOR]Amazing detail in a handheld Q/300mm image Mikesul. I've had limited luck using Q/Pentax 55-300 handheld. Never achieved a shot as sharp as yours using the DA*300 hand held. My problem is focusing. I can hold lens steady for a brief instant, but not long enough to manage focusing the big 300. I need more practice! More a monopod/tripod man.
Yes, much beyond 50mm I found that I couldn't hold the camera sufficiently steadily by myself to MF - so I got a MeFoto walking stick / monopod which doesn't meaningfully add to my load but greatly increases my ability to hold on target while focusing.
01-19-2017, 12:22 PM   #1176
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QuoteOriginally posted by reh321 Quote
Yes, much beyond 50mm I found that I couldn't hold the camera sufficiently steadily by myself to MF
Once, I tried handheld with q10 and 500mm mirror lens and 2x TC.....near impossible to get a shot, so I changed to the M 135mm f3.5(and moved closer to the subject).
01-21-2017, 06:07 AM - 6 Likes   #1177
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Q-S1 at 560mm at a distance of about 30-40 feet...

Last edited by wildman; 01-26-2017 at 04:15 PM.
01-21-2017, 03:05 PM - 1 Like   #1178
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QuoteOriginally posted by barondla Quote
Awesome moon shot rgknief60. Shows excellent moon detail.
Thanks! I wanted to use my DA* 300 with the Q to compare, but own a generic adapter
with no aperture control. Atmospheric conditions were not the best for viewing.

Here is the full mooon experiment I tried using using the K-1, DA* 300, and 3 stacked
Pentax Teleconverters, the 2x, F1.7, & HD 1.4. Did not think to try the 2x with the F* 300
and the Q. Wish I had.

QuoteOriginally posted by barondla Quote
I can hold lens steady for a brief instant
Same here. The "instant" seems to get briefer the older I get!

---------- Post added 01-21-17 at 04:14 PM ----------

QuoteOriginally posted by wildman Quote
Q-S1 at 560mm at a distance of about 30-40 feet...
Amazing. Nice sharp image with lots of detail. Could you see yourself in it's eye?
I assume that the image is not cropped.

Do you remember at what aperture (mark) the Pentax adapter was set? That's helpful info.

01-21-2017, 03:45 PM - 5 Likes   #1179
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QuoteOriginally posted by rgknief60 Quote
Do you remember at what aperture (mark) the Pentax adapter was set?
f/7.1 not cropped.

Another one at 560mm not cropped...

Last edited by wildman; 01-26-2017 at 04:15 PM.
01-21-2017, 07:12 PM   #1180
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Excellent images, wildman. The feather detail is superb.
Thanks for sharing
barondla
01-21-2017, 09:02 PM   #1181
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QuoteOriginally posted by barondla Quote
The feather detail is superb.
Thank the glass for that - not me.
01-22-2017, 12:20 AM   #1182
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QuoteOriginally posted by barondla Quote
Excellent images, wildman. The feather detail is superb.
Thanks for sharing
I second that!

QuoteOriginally posted by wildman Quote
Thank the glass for that - not me.
Wow! "Your lens takes great pictures!"

Seriously, you have some great technique and skill behind that shot.

I doubt most folks could take your gear and reproduce that. I know I'd like to try!
01-22-2017, 07:53 AM - 2 Likes   #1183
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QuoteOriginally posted by rgknief60 Quote
Seriously, you have some great technique and skill behind that shot.
Thanks for those kind words but don't forget all the failed shots you never see.

A low light understory shot...

Last edited by wildman; 01-26-2017 at 04:15 PM.
01-22-2017, 08:32 AM   #1184
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Can you get this quality handheld? They are really impressive photos.
01-22-2017, 08:49 AM   #1185
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QuoteOriginally posted by Mikesul Quote
Can you get this quality handheld?
No - or at least I never tried it. My setup is strictly tripod mount. Take a look at my gear and you will see why....

Last edited by wildman; 01-26-2017 at 04:15 PM.
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