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itshimitis · 05-30-2017, 05:47 PM - **5 Likes**

Originally posted by Tom Marvel

something different

Definitely Different!

A few from this evening in the Lake District. I donated blood to the local insects whilst taking these:

1. 645Z and A* 300 f/4

2. FA 80 - 160

3.

**Tom Marvel** · 05-30-2017, 06:10 PM - **4 Likes**

something a little less different

**mattb123** · 05-30-2017, 10:30 PM - **7 Likes**

I heard this dam was spilling an impressive amount of water which is unusual so tonight I decided to go check it out.
645D & 45-85

A 35

sugus · 05-31-2017, 01:24 PM - **6 Likes**

500C, 2.8/80mm, CFV-16

itshimitis · 05-31-2017, 06:25 PM - **2 Likes**

Some from today around Rydal

Z and A* 300 f/4

DA 28 - 45

**mattb123** · 05-31-2017, 09:10 PM - **5 Likes**

One more from last night with some swirling bubbles. Had to go HDR just to get detail in the sky.
645D & A 35

**TDvN57** · 06-01-2017, 12:51 AM - **3 Likes**

A couple of pictures I recently took with the 645z and the 600mm A* lens with 1.4 TC

The aerial combat took place about 300 meters (yards) from me and I had to crop about 50%. It also put the 645z through its paces for dynamic range, because the shutter speed was 1/1000 and f13 to maximize sharpness. I used a gimbal on a not so sturdy tripod. Focus is manual which is a real challenge when it comes to tracking fast action birds in flight. With more practice I'm sure I can get better sharpness and perhaps with good luck I can get closer. From further bird tracking it seems to me the 1.4 TC is not of much help if the birds are closer than 50 meters, or so. The bird fills up the view and it becomes impossible to track flight action.

Jupiter and its four moons was a challenge. The 645z is obviously not designed for astro photography, but still great fun to swing that gimbal skyward at night. The crop factor faries in these pictures, and if I recall correctly is around 500%, or perhaps 600%. At f6.7 the lens is also not in its sweet spot, and I was surprized to see the clarity in the end result. I could not lower the shutter speed, because anything slower than 1/3" produced oval objects.

The moon was a bit easier to work with and I could increase the shutter speed substantially. I could also get the F stop closer to the sweet spot which I found to be upwards of f11.

This is a heavy crop of about 400% if I recall correctly. Infinity focus on the lens is a trick to learn but with the mechanical marker it is quite easy to return to infinity, once you have set it up.

mikeSF · 06-01-2017, 11:55 AM - **18 Likes**

I just got back from a night-photo trek in the Owen's Valley, CA.

Here's one from the Z with 25mm:

Phone Home

**mattb123** · 06-01-2017, 12:23 PM - **1 Like**

Originally posted by mikeSF

I just got back from a night-photo trek in the Owen's Valley, CA.

Here's one from the Z with 25mm:

Phone Home

Awesome!

BostonUKshooter · 06-01-2017, 11:19 PM

Originally posted by mattb123

One more from last night with some swirling bubbles. Had to go HDR just to get detail in the sky.
645D & A 35

...in-camera HDR?? Rgds, Ian

mikeSF · 06-01-2017, 11:22 PM

Originally posted by mattb123

One more from last night with some swirling bubbles. Had to go HDR just to get detail in the sky.
645D & A 35

so lovely and the sky exposure is perfect

mikeSF · 06-02-2017, 08:15 AM - **7 Likes**

05-30-2017, 10:30 PM - 7 Likes	#10668
mattb123 Site Supporter Join Date: Apr 2010 Location: Colorado High Country Photos: Gallery Posts: 10,873	I heard this dam was spilling an impressive amount of water which is unusual so tonight I decided to go check it out. 645D & 45-85 A 35 Last edited by mattb123; 07-24-2017 at 06:33 AM.

05-31-2017, 09:10 PM - 5 Likes	#10671
mattb123 Site Supporter Join Date: Apr 2010 Location: Colorado High Country Photos: Gallery Posts: 10,873	One more from last night with some swirling bubbles. Had to go HDR just to get detail in the sky. 645D & A 35 Last edited by mattb123; 05-31-2017 at 09:37 PM.

06-02-2017, 08:15 AM - 7 Likes	#10677
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622	more from Milky Way-Palooza Alone 645Z & DFA35/3.5 Last edited by mikeSF; 06-02-2017 at 08:32 AM.

06-02-2017, 04:27 PM - 1 Like	#10678
desertscape Pentaxian Join Date: Feb 2009 Location: Arizona Posts: 1,272	Excellent radio telescope shot Mike. Nice contrast in the sky.

06-03-2017, 02:53 PM - 1 Like	#10679
jtkratzer Veteran Member Join Date: Jul 2012 Location: Lancaster County, Pa Posts: 963	Originally posted by mikeSF more from Milky Way-Palooza Alone 645Z & DFA35/3.5 That's incredible! Just worked out the math on shooting that on a 64 speed film, about 24 1/2 minutes. Crazy.

05-30-2017, 05:47 PM - 5 Likes	#10666
itshimitis Pentaxian Join Date: May 2011 Location: All over the place Posts: 3,535	Originally posted by Tom Marvel something different Definitely Different! A few from this evening in the Lake District. I donated blood to the local insects whilst taking these: 1. 645Z and A* 300 f/4 2. FA 80 - 160 3.

05-31-2017, 01:24 PM - 6 Likes	#10669
sugus Senior Member Join Date: Jun 2016 Location: Zürich Posts: 205	500C, 2.8/80mm, CFV-16

05-31-2017, 06:25 PM - 2 Likes	#10670
itshimitis Pentaxian Join Date: May 2011 Location: All over the place Posts: 3,535	Some from today around Rydal Z and A* 300 f/4 DA 28 - 45

06-01-2017, 12:51 AM - 3 Likes	#10672
TDvN57 Loyal Site Supporter Join Date: Jul 2011 Location: Berlin Photos: Gallery Posts: 1,150	A couple of pictures I recently took with the 645z and the 600mm A* lens with 1.4 TC The aerial combat took place about 300 meters (yards) from me and I had to crop about 50%. It also put the 645z through its paces for dynamic range, because the shutter speed was 1/1000 and f13 to maximize sharpness. I used a gimbal on a not so sturdy tripod. Focus is manual which is a real challenge when it comes to tracking fast action birds in flight. With more practice I'm sure I can get better sharpness and perhaps with good luck I can get closer. From further bird tracking it seems to me the 1.4 TC is not of much help if the birds are closer than 50 meters, or so. The bird fills up the view and it becomes impossible to track flight action. Jupiter and its four moons was a challenge. The 645z is obviously not designed for astro photography, but still great fun to swing that gimbal skyward at night. The crop factor faries in these pictures, and if I recall correctly is around 500%, or perhaps 600%. At f6.7 the lens is also not in its sweet spot, and I was surprized to see the clarity in the end result. I could not lower the shutter speed, because anything slower than 1/3" produced oval objects. The moon was a bit easier to work with and I could increase the shutter speed substantially. I could also get the F stop closer to the sweet spot which I found to be upwards of f11. This is a heavy crop of about 400% if I recall correctly. Infinity focus on the lens is a trick to learn but with the mechanical marker it is quite easy to return to infinity, once you have set it up.

06-01-2017, 11:55 AM - 18 Likes	#10673
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622	I just got back from a night-photo trek in the Owen's Valley, CA. Here's one from the Z with 25mm: Phone Home

06-01-2017, 12:23 PM - 1 Like	#10674
mattb123 Site Supporter Join Date: Apr 2010 Location: Colorado High Country Photos: Gallery Posts: 10,873	Originally posted by mikeSF I just got back from a night-photo trek in the Owen's Valley, CA. Here's one from the Z with 25mm: Phone Home Awesome!

06-01-2017, 11:19 PM	#10675
BostonUKshooter Veteran Member Join Date: Nov 2014 Posts: 338	Originally posted by mattb123 One more from last night with some swirling bubbles. Had to go HDR just to get detail in the sky. 645D & A 35 ...in-camera HDR?? Rgds, Ian

06-01-2017, 11:22 PM	#10676
mikeSF Pentaxian Join Date: Jan 2009 Location: East Bay Area, CA Photos: Gallery Posts: 6,622	Originally posted by mattb123 One more from last night with some swirling bubbles. Had to go HDR just to get detail in the sky. 645D & A 35 so lovely and the sky exposure is perfect

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